Astronomy Daily: Latest Space News

It's the first day of astronomical spring — and the universe is celebrating in style. On today's Astronomy Daily, Anna and Avery cover a triple CME solar storm with aurora potential reaching as far south as Illinois, explain why the vernal equinox amplifies aurora activity, report on the ongoing meteorite hunt following Tuesday's spectacular Ohio fireball, reveal an extraordinary 14-billion-year-old star that carries the chemical fingerprints of the universe's very first stars, bring a happy update on Europe's Proba-3 solar science satellite which has ended a month of silence, and explain how X-ray CT scans of returned asteroid samples finally cracked one of Bennu's longest-standing mysteries.   Stories in This Episode 1. Triple CME Strike + Equinox Aurora Alert Three coronal mass ejections (CMEs) are currently en route to Earth, with the first arriving today. Forecasters predict G2 (moderate) to G3 (strong) geomagnetic storm conditions, potentially bringing auroras as far south as Illinois. The timing coincides with the vernal equinox — historically one of the best aurora windows of the year due to the Russell-McPherron effect. 2. The Vernal Equinox — Today! The 2026 March equinox arrived today at 14:46 UTC, marking the astronomical start of spring in the Northern Hemisphere (and autumn in the Southern). Tonight, a thin crescent Moon appears alongside Venus in the west-southwest sky. 3. Ohio Fireball — Meteorite Hunt Underway On St. Patrick's Day (March 17), a seven-ton asteroid exploded over northeast Ohio with the force of 250 tons of TNT. NASA confirmed meteorites landed near Medina County, and hunters from across the US have already found fragments in the Sharon Center area. 4. Ancient 'Cosmic Fossil' Star PicII-503 Astronomers have discovered PicII-503, a second-generation star in the Pictor II dwarf galaxy with only 1/40,000th of the Sun's iron — the lowest ever measured outside the Milky Way. Its extraordinary carbon-to-iron ratio links it to mysterious carbon-enhanced metal-poor stars scattered across our galaxy's halo, solving a long-standing stellar mystery. Published in Nature Astronomy by Anirudh Chiti (Stanford) et al. 5. Proba-3 Phones Home — 'A Great Relief!' ESA confirmed on March 19 that its Proba-3 Coronagraph satellite — silent since mid-February after an anomaly caused it to lose attitude control — has reestablished contact via the Villafranca ground station. The spacecraft is in safe mode, solar-powered, and undergoing health checks before science operations can resume. 6. NASA Cracks Bennu's Boulder Mystery X-ray CT scans of returned OSIRIS-REx samples reveal Bennu's boulders are riddled with internal crack networks — the missing piece explaining the asteroid's puzzling low thermal inertia. Published in Nature Communications. The findings will improve asteroid characterisation from Earth-based telescopes globally.   Source Links Triple CME / Aurora Alert — Space.com: https://www.space.com/stargazing/auroras/aurora-alert-powerful-geomagnetic-storm-could-spark-northern-lights-as-far-south-as-illinois-on-march-19 Triple CME / Sun News — EarthSky: https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates/ NOAA Space Weather Prediction Centre: https://www.spaceweather.gov Vernal Equinox 2026 — EarthSky: https://earthsky.org/astronomy-essentials/everything-you-need-to-know-vernal-or-spring-equinox/ Ohio Fireball — EarthSky: https://earthsky.org/earth/sonic-boom-from-a-meteor-cleveland-ohio-and-pennsylvania-mar-17-2026/ Ohio Meteorite Hunt — Cleveland19: https://www.cleveland19.com/2026/03/19/meteorite-hunters-states-away-find-fragments-northeast-ohio/ PicII-503 Discovery — NOIRLab: https://noirlab.edu/public/news/noirlab2607/ PicII-503 — Nature Astronomy (DOI): https://doi.org/10.1038/s41550-026-02802-z Proba-3 Phones Home — Space.com: https://www.space.com/space-exploration/missions/a-great-relief-europes-proba-3-solar-eclipse-satellite-phones-home-after-a-month-of-silence Proba-3 ESA Statement: https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Proba-3_s_Coronagraph_is_alive Bennu Mystery Solved — NASA Science: https://science.nasa.gov/missions/osiris-rex/asteroid-bennus-rugged-surface-baffled-nasa-we-finally-know-why/ Bennu — Nature Communications (SciTechDaily): https://scitechdaily.com/we-were-scratching-our-heads-scientists-finally-solve-asteroid-bennus-surface-mystery/   Find us: astronomydaily.io  |  @AstroDailyPod on Twitter/X, Instagram, TikTok, YouTube & Tumblr Part of the Bitesz.com Podcast Network

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A massive day in space as NASA's Artemis II moon rocket heads to the launchpad tonight, NASA and China both conduct spacewalks, CERN announces a brand-new particle, and astronomers reveal a nearby galaxy has been hiding the aftermath of a cosmic collision.   Episode Highlights   🚀 Story 1: Artemis II Rollout — The Moon Rocket Heads to the Pad Tonight NASA is rolling the Artemis II Space Launch System and Orion spacecraft to Launch Pad 39B tonight (March 19), targeting an 8 p.m. EDT start for the slow 4-mile crawler journey. The April 1 launch window remains firmly on track. Crew members Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen have entered quarantine — making history as the first crew to venture to the vicinity of the Moon since 1972. Source: NASA Blogs / Space.com   👨‍🚀 Story 2: Dual Spacewalk Day — ISS & Tiangong Both Suit Up NASA astronauts Jessica Meir and Chris Williams completed U.S. Spacewalk 94 on March 18, spending 7 hours and 2 minutes preparing the ISS for a new roll-out solar array. Meanwhile on March 16, Shenzhou 21 commander Zhang Lu tied the Chinese EVA record with his sixth career spacewalk alongside crewmate Wu Fei outside China's Tiangong station. Sources: NASA / Space.com   ⚛️ Story 3: CERN's LHCb Discovers New Doubly Charmed Particle The LHCb experiment at CERN announced the first discovery made by its upgraded detector: the Xi-cc-plus baryon, a proton-like particle containing two charm quarks and one down quark, making it roughly four times heavier than a proton. Detected at 7-sigma significance, it settles a two-decade-old scientific dispute and is the 80th particle discovered by LHCb. Source: CERN / Universe Today   🌌 Story 4: Small Magellanic Cloud Caught Mid-Transformation University of Arizona astronomers have confirmed that the Small Magellanic Cloud — one of the Milky Way's closest galactic neighbours — collided directly with the Large Magellanic Cloud a few hundred million years ago and is still reeling from the impact. The finding upends decades of assumptions about the SMC's use as a benchmark for early universe galaxy studies. Source: The Astrophysical Journal / Sky & Telescope   🪐 Story 5: Exotrojans — Hunting Asteroid Companions Around Other Stars A new paper in The Astrophysical Journal by Jackson Taylor (West Virginia University) and colleagues pushes the search for exotrojans — asteroid co-orbital companions to exoplanets — into some of the most extreme environments yet studied, as the hunt continues for the first confirmed detection. Source: The Astrophysical Journal / Universe Today   📡 Story 6: SETI Rethink — Time to Broaden the Search A new paper argues that the decades-long focus on narrow radio and microwave bandwidths in the search for alien signals may be too limiting, and proposes broadening the electromagnetic search to a much wider range of the spectrum. Source: Universe Today   Find Us Everywhere •       🌐 Website: astronomydaily.io •       🐦 Twitter/X: @AstroDailyPod •       📸 Instagram: @AstroDailyPod •       🎵 TikTok: @AstroDailyPod •       ▶️ YouTube: @AstroDailyPod •       📝 Tumblr: @AstroDailyPod •       🎙️ Part of the Bitesz.com Podcast Network

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A packed episode today: a live spacewalk is underway at the ISS as we record, asteroid Ryugu has yielded all five DNA building blocks, a solar storm is heading for Earth overnight, Artemis II's moon rocket is about to roll out, and Blue Origin has unveiled an asteroid defence mission concept.   Story 1 — ISS Spacewalk 94: Meir & Williams EVA NASA astronauts Jessica Meir and Chris Williams conducted U.S. spacewalk 94 today (March 18), exiting the ISS Quest airlock at approximately 8:00 a.m. EDT for a planned 6.5-hour EVA. The pair installed a modification kit and routed cables to prepare the 2A power channel for a future roll-out solar array (IROSA). It is Meir's fourth spacewalk and Williams' first. A second EVA (spacewalk 95) is planned for approximately April 1 to prep the 3B power channel. •       Source: NASA — nasa.gov •       Watch: NASA+, Amazon Prime, YouTube (search 'NASA spacewalk 94')   Story 2 — Asteroid Ryugu: All Five DNA Building Blocks Found Samples returned from asteroid Ryugu by Japan's Hayabusa-2 mission contain all five canonical nucleobases — adenine, guanine, cytosine, thymine, and uracil — the building blocks of DNA and RNA. The findings, published March 16 in Nature Astronomy, suggest these life-essential compounds are widespread across the solar system and may have been delivered to early Earth by asteroid impacts. •       Source: Nature Astronomy (DOI: 10.1038/s41550-026-02791-z) •       Lead researcher: Dr. Toshiki Koga, JAMSTEC (Japan Agency for Marine-Earth Science and Technology) •       Further reading: phys.org, space.com, gizmodo.com   Story 3 — Aurora Alert: CME Arriving March 19 A coronal mass ejection (CME) produced by an M2.7 solar flare from active region AR4392 on March 16 is forecast to reach Earth on March 19. NOAA has issued a G2 (Moderate) geomagnetic storm watch, with potential for isolated G3 (Strong) conditions. Aurora could be visible across northern US states, Canada, and northern Europe overnight March 19–20. The timing coincides with the vernal equinox, enhancing the geomagnetic effect via the Russell-McPherron effect. •       Source: NOAA Space Weather Prediction Center — swpc.noaa.gov •       Aurora tracking: SpaceWeatherLive, My Aurora Forecast (apps) •       Further reading: space.com, earthsky.org, watchers.news   Story 4 — Artemis II: Rollout Decision Happening Today NASA's Artemis II SLS rocket is preparing to roll out from the Vehicle Assembly Building to Launch Pad 39B at Kennedy Space Center, with the final timing decision being made today (March 18). Engineers completed repairs faster than expected after fixing an electrical harness in the flight termination system. Rollout is expected March 19 or 20, preserving the April 1 launch window. The crew: Reid Wiseman, Victor Glover, Christina Koch (NASA), and Jeremy Hansen (CSA) — the first crewed mission to lunar space since Apollo 17 in 1972. •       Source: NASA — nasa.gov/artemis, space.com •       Launch window: April 1–6, 2026 (with additional dates available) •       Watch the rollout livestream: NASA YouTube channel   Story 5 — Blue Origin NEO Hunter: Asteroid Defence Blue Origin has partnered with NASA's Jet Propulsion Laboratory and Caltech to develop the NEO Hunter mission concept — a planetary defence system built on the Blue Ring spacecraft platform. NEO Hunter combines ion beam deflection (firing charged particles to nudge an asteroid off course) and 'Robust Kinetic Disruption' (crashing into the asteroid at up to 22,600 mph), with a dedicated 'Slamcam' satellite documenting any impact. No launch date has been announced. •       Source: Blue Origin (via X / space.com, March 17, 2026) •       Blue Ring platform: modular satellite bus supporting up to 4,000 kg payload •       Partners: NASA Jet Propulsion Laboratory, California Institute of Technology

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Astronomy Daily S05E65 — 17 March 2026 Six stories from the frontiers of space and astronomy, hosted by Anna and Avery.   IN THIS EPISODE: •     🪐 JWST identifies a brand new class of exoplanet — a permanent magma ocean world with a hydrogen sulfide atmosphere 35 light-years from Earth •     📡 RBFLOAT — the brightest fast radio burst ever detected — is pinpointed to a galaxy 130 million light-years away, with a mysterious JWST infrared discovery at the same location •     🧑‍🚀 The first ISS spacewalk of 2026 is happening TOMORROW — NASA astronauts Jessica Meir and Chris Williams step outside at 8am EDT, March 18. Watch live on NASA+ •     🌊 Hidden water beneath Mars — new research suggests the Red Planet was habitable far longer than we thought, and Curiosity is investigating strange 'spiderweb' formations that reveal its watery history •     🚀 100 years ago yesterday, Robert Goddard launched the world's first liquid-fuelled rocket. But where is 'Nell' — the original rocket — today? The mystery of space history's greatest missing artefact •     🛸 MIT, MITRE and Sandia publish a Nature paper on a photonic chip that could replace bulky mechanical mirrors on spacecraft — a potential revolution in space communications and LiDAR   SOURCE LINKS: •     JWST / L 98-59 d magma planet (Nature Astronomy, 16 March 2026): phys.org/news/2026-03-class-molten-planet-abundant-sulfur.html •     RBFLOAT fast radio burst papers (Astrophysical Journal Letters): sciencedaily.com/releases/2026/03/260315004348.htm •     ISS Spacewalk 94 — live coverage: NASA+ / NASA YouTube (6:30am EDT, 18 March 2026) •     Mars water research and Curiosity boxwork ridges: sciencedaily.com •     Goddard centennial — collectSPACE: collectspace.com/news/news-031626a-robert-goddard-liquid-fuel-rocket-centennial-where-nell.html •     MIT photonic chip paper (Nature): universetoday.com — March 16, 2026   Find us: astronomydaily.io  |  @AstroDailyPod on Twitter/X, Instagram, TikTok, YouTube, Tumblr Part of the Bitesz.com Podcast Network

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In today's episode of Astronomy Daily, Anna and Avery cover six remarkable stories spanning an interstellar farewell, a stunning pre-dawn sky show, a potential new Martian mineral, ghost particles from long-dead stars, a revolutionary new framework for detecting alien life, and the astonishing possibility of habitable moons drifting starless through the galaxy.   Stories Covered in S05E64 1. 3I/ATLAS: The Interstellar Comet's Jupiter Farewell: Today marks the closest approach of interstellar comet 3I/ATLAS to Jupiter before it leaves our solar system forever. New ALMA data reveals the comet carries extraordinary levels of methanol — a chemical fingerprint from another solar system entirely.   2. Mercury, Mars & the Moon: Tonight and tomorrow morning, Mercury and Mars gather close to a crescent Moon in the pre-dawn sky. Southern Hemisphere observers have the best view. This week also brings the March equinox (March 20) and heightened aurora activity.   3. A New Mineral on Mars?: Scientists may have discovered a previously unknown mineral hidden in Mars's ancient sulfate deposits. Found by combining laboratory experiments with orbital spectroscopy, the potential discovery could shed new light on Mars's ancient watery past.   4. Ghost Particles from Dead Stars: Japan's upgraded Super-Kamiokande detector may detect the Diffuse Supernova Neutrino Background for the first time in 2026 — a faint signal from every supernova across cosmic history, including stars that exploded before Earth was born.   5. Life, But Not As We Know It: A new framework called Assembly Theory, published today in Universe Today, offers a way to detect alien life that bears no resemblance to life on Earth. Rather than searching for specific biosignature gases, it asks how complex the atmospheric chemistry is — and is designed for the upcoming Habitable Worlds Observatory.   6. Starless Moons: Moons orbiting free-floating planets — worlds ejected from their home solar systems — could sustain liquid water oceans for up to 4.3 billion years, powered by tidal heating and insulated by hydrogen atmospheres. No star required.   Astronomy Daily is part of the Bitesz.com Podcast Network. New episodes every weekday. Website: astronomydaily.io Twitter/X: @AstroDailyPod Instagram: @AstroDailyPod TikTok: @AstroDailyPod

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Episode: S05E63  |  Date: Saturday, 14 March 2026 Hosted by Anna & Avery  |  Astronomy Daily Podcast Network — Bitesz.com   From galactic migrations to Pi Day planets, Episode 63 covers six stories that span the breadth of the solar system and beyond. Our Sun turns out to have hitched a ride outward from the Milky Way's interior billions of years ago — and brought thousands of stellar companions with it. China has named a leading candidate for its first crewed Moon landing. Russia is dusting off the legacy of the legendary Soviet Venera programme with an ambitious 2036 return to Venus. NASA's nuclear-powered Titan drone is now being physically built. China's Mars sample return mission is constructing actual spacecraft. And in honour of Pi Day, we visit the exoplanet whose year lasts almost exactly 3.14 days.   Story 1: The Sun Was Part of a Galactic Migration of Solar Twins A new study in Astronomy & Astrophysics by researchers at Tokyo Metropolitan University and the National Astronomical Observatory of Japan has built the largest-ever catalogue of solar twins — 6,594 Sun-like stars. Using ESA's Gaia satellite, they found a clustering of stars aged 4–6 billion years, suggesting the Sun migrated outward from the Milky Way's inner regions billions of years ago, possibly when the galactic bar was still forming and its 'corotation barrier' was weak enough to allow mass stellar movement. This migration may have placed Earth in a calmer, more life-friendly region of the Galaxy.   •      Journal: Astronomy & Astrophysics (March 2026) •      Lead researchers: Daisuke Taniguchi (Tokyo Metropolitan University) & Takuji Tsujimoto (NAOJ) •      Data source: ESA Gaia satellite — catalogue of ~2 billion stars •      Key finding: Sun likely formed ~10,000 light-years closer to the Galactic Centre than its current position   Story 2: China Eyes Rimae Bode for Its First Crewed Moon Landing A study published in Nature Astronomy (9 March 2026) proposes Rimae Bode — a volcanic region near Sinus Aestuum on the lunar near side — as a prime candidate for China's first crewed lunar landing, targeted for 2030. The site contains five distinct terrain types including pyroclastic deposits, mare basalts, rille systems and highland material. Researcher Jun Huang (China University of Geosciences, Wuhan) described it as a 'geological museum.' Four specific landing spots within the region have been proposed.   •      Journal: Nature Astronomy (March 2026) •      Lead researcher: Jun Huang, China University of Geosciences, Wuhan •      Site: Rimae Bode, near Sinus Aestuum, lunar near side •      Oldest volcanic activity in region: ~3.2–3.7 billion years ago •      China's crewed lunar landing target: 2030   Story 3: Russia Plans Venera-D Mission to Venus in 2036 Russia's First Deputy Prime Minister Denis Manturov confirmed on 10 March 2026 that Russia plans to launch the Venera-D mission — comprising a lander, atmospheric balloon, and orbiter — to Venus in 2036. The mission would extend the legacy of the Soviet Venera programme (1961–1983), which remains the only national programme to have successfully landed on Venus. Scientific goals include searching for microbial life in Venus's clouds and studying the planet's atmosphere.   •      Mission: Venera-D (lander + balloon + orbiter) •      Planned launch: 2036 •      Agency: Roscosmos •      Heritage: Soviet Venera programme — 16 missions, 1961–1983 •      Science goal: Search for biosignatures in Venusian cloud layers (48–60 km altitude) •      Source: TASS, citing Razvedchik Journal interview with Denis Manturov   Story 4: NASA Begins Building Dragonfly — Nuclear-Powered Drone for Titan NASA and Johns Hopkins Applied Physics Laboratory (APL) officially began integration and testing of the Dragonfly rotorcraft on 10 March 2026. The car-sized, nuclear-powered octocopter is designed to fly across the surface of Saturn's moon Titan, targeting a 2028 launch on a SpaceX Falcon Heavy and arriving at Titan in 2034. It will explore diverse terrain including organic dunes and the Selk impact crater, studying prebiotic chemistry relevant to the origins of life.   •      Mission: Dragonfly | Agency: NASA / Johns Hopkins APL •      Launch: No earlier than summer 2028 (SpaceX Falcon Heavy) •      Arrival: Titan, 2034 | Mission duration: ~3.3 years •      Power: Radioisotope thermoelectric generator (nuclear) •      Range: >108 miles (175 km) across Titan's surface •      Quote: "This milestone essentially marks the birth of our flight system." — Elizabeth Turtle, PI   Story 5: China's Tianwen-3 Mars Sample Return Enters Construction Phase China's Tianwen-3 mission chief designer Liu Jizhong announced on 12 March 2026 that the mission has achieved key technology breakthroughs and is entering flight model development — building the actual spacecraft. Two Long March 5 rockets will launch in late 2028, carrying a lander/ascent vehicle and an orbiter/return spacecraft respectively. The goal is to return at least 500 grams of Martian samples to Earth by 2031 — what would be humanity's first Mars sample return.   •      Mission: Tianwen-3 | Agency: CNSA •      Launch: Late 2028 (two Long March 5 rockets) •      Sample return: Earth, targeted 2031 •      Sample target: Minimum 500 grams of Martian rock and soil •      Landing site candidates: 19 remaining (narrowing to 3 by end of 2026) •      Primary science goal: Search for biosignatures / signs of past life on Mars •      Note: NASA's Mars Sample Return was effectively cancelled in early 2026   Story 6 (Pi Day Special): K2-315b — The Exoplanet with a 3.14-Day Year In honour of Pi Day (3/14), NASA's Astronomy Picture of the Day features K2-315b — an Earth-sized exoplanet orbiting a cool red dwarf star approximately 185 light-years away. Its orbital period of almost exactly 3.14159 days makes it one of the most mathematically charming exoplanet discoveries on record. Discovered using Kepler K2 mission data and announced in 2020, the planet orbits so close to its star that its surface is extremely hot and definitely uninhabitable — but delightfully pi-shaped in its year length.   •      Exoplanet: K2-315b •      Distance: ~185 light-years •      Host star: Cool red dwarf (M-type) •      Orbital period: 3.14159 days •      Discovery: Kepler K2 mission data, announced 2020 •      Surface: Extremely hot — far too close to its star for habitability •      Today's NASA APOD (14 March 2026): astronomydaily.io for link

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It’s a bumper Friday edition of Astronomy Daily. NASA gives Artemis II the official green light to launch on April 1st, marking the first crewed lunar mission in over 53 years. Astronomers witness the birth of a magnetar for the very first time, confirming a decade-old theory and demonstrating Einstein’s general relativity in a supernova. A star 11,000 light-years away shows evidence of two planets catastrophically colliding in real time. A bus-sized asteroid buzzed past Earth last night closer than the Moon, discovered just five days ago. A fast solar wind stream from a coronal hole could bring auroras to higher latitudes tonight. And scientists may have identified the source of the most energetic neutrino ever recorded. 
Story 1: Artemis II — Green Light for April 1 Launch NASA completed its Flight Readiness Review on 12 March 2026, with all mission teams voting unanimously ‘go’ for launch. The Space Launch System and Orion capsule will roll out to Launch Complex 39B on 19 March, with the primary launch window opening on 1 April at 6:24pm ET. Backup windows exist on 2–6 April and 30 April. The crew of four — Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen — will fly a 10-day figure-eight loop around the Moon. It will be the first crewed mission beyond low Earth orbit since Apollo 17 in December 1972. The previously planned Moon landing on Artemis III has been moved to Artemis IV, though NASA’s 2028 goal for a lunar landing remains unchanged. •       NASA Artemis II Mission Page: https://www.nasa.gov/mission/artemis-ii/ •       CNN coverage of FRR outcome: https://www.cnn.com/2026/03/12/science/nasa-artemis-2-launch-date-risk-assessment 
Story 2: First-Ever Observed Birth of a Magnetar Astronomers have for the first time directly observed the birth of a magnetar — a highly magnetized, rapidly spinning neutron star — confirming it as the power source behind some of the universe’s brightest stellar explosions. The discovery, published in Nature on 11 March 2026, centres on superluminous supernova SN 2024afav, located approximately one billion light-years from Earth. Graduate student Joseph Farah at UC Santa Barbara, working with Las Cumbres Observatory’s global telescope network, detected a distinctive ‘chirp’ pattern in the supernova’s fading light — four oscillations with shortening intervals. This pattern is explained by a wobbling accretion disc around the newborn magnetar, driven by Lense-Thirring precession — a general relativistic effect. The finding confirms a 2010 theory by UC Berkeley physicist Dan Kasen, and marks the first time general relativity has been required to explain supernova mechanics. •       Berkeley News: https://news.berkeley.edu/2026/03/11/astronomers-capture-birth-of-a-magnetar-confirming-link-to-some-of-universes-brightest-exploding-stars/ •       Space.com: https://www.space.com/astronomy/stars/astronomers-witness-colossal-supernova-explosion-create-one-of-the-most-magnetic-stars-in-the-universe-for-the-first-time 
Story 3: Two Planets Caught Colliding 11,000 Light-Years Away Researchers at the University of Washington have published evidence of a catastrophic planetary collision observed in real time around star Gaia20ehk, located approximately 11,000 light-years from Earth near the constellation Puppis. The star began flickering erratically from 2016, before its light output went ‘completely bonkers’ around 2021 — the signature of a massive debris cloud from two colliding worlds passing in front of the star. The debris orbits at roughly one astronomical unit from the star — the same as Earth’s distance from the Sun — and may eventually coalesce into new planetary bodies resembling an Earth-Moon system. The paper was published 11 March in The Astrophysical Journal Letters. •       University of Washington: https://www.washington.edu/news/2026/03/11/uw-astronomers-spot-planet-collision-evidence/ •       ScienceDaily: https://www.sciencedaily.com/releases/2026/03/260311213429.htm 
Story 4: Asteroid 2026 EG1 Flies Past Earth A bus-sized asteroid designated 2026 EG1 made its closest approach to Earth at 11:27pm EDT on 12 March 2026, passing just 197,466 miles away — closer than the Moon. Estimated at 32–72 feet (10–22 metres) across and travelling at over 21,500 mph, it posed no threat. Notably, the asteroid was only discovered on 8 March — five days before its flyby — highlighting the ongoing challenge of detecting small near-Earth objects with short warning times. NASA’s Vera Rubin Observatory has already catalogued over 2,000 previously unknown solar system bodies since beginning operations. •       Space.com: https://www.space.com/stargazing/bus-sized-asteroid-will-fly-past-earth-tonight-mere-days-after-being-discovered-heres-what-to-expect-march-12-2026 
Story 5: Solar Wind & Aurora Alert A fast-moving stream of solar wind from a large coronal hole on the Sun is expected to reach Earth on 13 March 2026, potentially triggering G1 (minor) geomagnetic storm conditions. Auroras may be visible from higher latitudes including Edinburgh and the Scottish Highlands, Reykjavik, northern Scandinavia, Seattle, Minneapolis, and Hobart (Tasmania) during local nighttime hours. The Moon is a waning crescent at approximately 34% illumination, making for reasonably dark skies. Observers can check real-time aurora forecasting at spaceweather.com or SpaceWeatherLive. •       EarthSky solar wind update: https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates/ •       Real-time aurora forecasts: https://spaceweatherlive.com/ 
Story 6: KM3NeT & the Record-Breaking Neutrino Scientists working with the KM3NeT neutrino detector on the floor of the Mediterranean Sea off Sicily believe they may have identified the source of the most energetic neutrino ever recorded. Detected three years ago, the particle had energy levels exceeding anything previously observed of its kind. Researchers now believe a population of blazars — galaxies with supermassive black holes firing particle jets directly towards Earth — is the most likely source. Blazars are among the most violent and energetic phenomena in the observable universe. The finding represents a significant step in multi-messenger astronomy. •       Universe Today: https://www.universetoday.com/

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In today's episode of Astronomy Daily — S05E61, Thursday 12 March 2026 — Anna and Avery cover six of the biggest stories in space and astronomy from the past 24 hours.   Stories in this episode: •       3I/ATLAS, our third confirmed interstellar visitor, has been found to be extraordinarily rich in methanol — a type of alcohol — with ALMA observations revealing methanol-to-hydrogen cyanide ratios far beyond almost any known solar system comet. The findings offer a chemical fingerprint of a distant planetary system, and the comet makes its closest pass to Jupiter on March 16. •       Firefly Aerospace's Alpha rocket successfully returned to flight on March 11, completing its seventh mission — 'Stairway to Seven' — after an 11-month stand-down following two mishaps in 2025. The mission also validated key Block II upgrade systems ahead of the next-generation rocket's debut on Flight 8. •       NASA held its Artemis II Flight Readiness Review today at Kennedy Space Center, a critical milestone ahead of a potential April launch. The SLS/Orion stack is being prepared for its second rollout after a helium flow issue was repaired in the Vehicle Assembly Building. •       A landmark helioseismology study from the University of Birmingham and Yale, drawing on 40 years of data from the Birmingham Solar-Oscillations Network, reveals that the Sun's internal structure shifts measurably between solar cycle minima — with implications for space weather forecasting. •       NASA's Van Allen Probe A reentered Earth's atmosphere on March 11, eight years earlier than expected, with the current active solar cycle responsible for accelerating its orbital decay. Most of the 600kg spacecraft burned up over the eastern Pacific. •       Astronomers using ESO's Very Large Telescope have discovered a third gas cloud — G2t — orbiting Sagittarius A*, the Milky Way's central supermassive black hole. Its near-identical orbit to the previously known G1 and G2 clouds suggests all three likely originated from the same binary star system.   Find full episodes, transcripts and more at astronomydaily.io. Follow us @AstroDailyPod on all major platforms.

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Welcome to Episode 60 of Astronomy Daily Season Five! In today's episode, Anna and Avery cover six major stories from the world of space and astronomy — including a neutron star collision in an unprecedented location, the latest Artemis II news, and a cosmic mystery solved after decades.   Stories covered in this episode:   1. NASA Discovers Neutron Star Crash in Unexpected Location A fleet of NASA telescopes — including Chandra, Fermi, Swift, and Hubble — has detected a neutron star merger inside a tiny galaxy buried in a vast stream of gas, 4.7 billion light-years away. It's the first time this type of collision has been spotted in such an environment, and it may explain why gamma-ray bursts sometimes appear outside any galaxy — and how precious metals like gold and platinum ended up in distant stellar regions. Published in The Astrophysical Journal Letters.   2. Artemis II Flight Readiness Review NASA will host a Flight Readiness Review press conference on Thursday 12 March at Kennedy Space Center, covering progress toward the first crewed Artemis mission. The rocket is currently back in the Vehicle Assembly Building following a helium issue, with rollout to the launchpad expected around 19 March and a launch target of no earlier than 1 April 2026.   3. Firefly Alpha 'Stairway to Seven' Scrubbed Again Firefly Aerospace's Alpha rocket — attempting its return to flight after a 10-month grounding — has been scrubbed three times in 10 days. The latest scrub occurred on 10 March during fluid loading after off-nominal readings. A new launch date will be confirmed following engineering review. This mission is the final Block I Alpha flight, with the upgraded Block II debuting on Flight 8.   4. DART Mission Reveals 'Cosmic Snowball Fight' Between Asteroids Researchers at the University of Maryland have found the first direct visual proof of material transfer between two asteroids — fan-shaped streaks on the surface of asteroid moon Dimorphos, left by debris thrown off its parent asteroid Didymos at just 30.7 cm/s. The discovery provides visual confirmation of the YORP effect and has implications for planetary defence modelling. ESA's Hera mission arrives at Didymos in December 2026. Published in The Planetary Science Journal.   5. Starship Flight 12 — About Four Weeks Away SpaceX is approximately four weeks from the launch of Starship Flight 12, which will be the first flight of the upgraded V3 configuration — the most powerful version of the already record-breaking vehicle. Engineers have completed propellant system tests on Ship 39 at Starbase, Texas, and preflight preparations are continuing.   6. Giant Cosmic Sheet Discovered Around the Milky Way Astronomers from the University of Groningen, publishing in Nature Astronomy, have used advanced computer simulations to discover that the matter surrounding our Local Group is arranged in a vast, flat sheet — dominated by dark matter — stretching tens of millions of light-years across. This structure, flanked by enormous empty voids, explains why nearby galaxies are moving away from us rather than being pulled inward. It's the first detailed map of dark matter distribution in our cosmic neighbourhood.   
  Astronomy Daily is part of the Bitesz.com Podcast Network. Website: astronomydaily.io | Social: @AstroDailyPod on all major platforms

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A 1,300-pound NASA satellite is falling back to Earth today, a meteorite punched through a German roof after a dazzling European fireball, Congress wants to keep the International Space Station flying until 2032, ALMA has captured the largest-ever image of the Milky Way's core, astronomers have mapped a hidden 'sea of light' from 10 billion years ago, and Jupiter appears to reverse direction in tonight's sky. Stories Covered 1. Van Allen Probe A Falls to Earth: NASA's 600kg Van Allen Probe A — launched in 2012 to study Earth's radiation belts — is making an unplanned early return to Earth today, March 10, 2026. Deactivated in 2019 after a seven-year mission, its descent was accelerated by unexpectedly high solar activity expanding Earth's atmosphere. Most of the spacecraft will burn up on reentry; the risk of any harm to people on the ground is approximately 1 in 4,200. 2. German Meteorite Strike: On the evening of Sunday 8 March, a brilliant fireball lit up the skies over Belgium, France, Germany, Luxembourg and the Netherlands, attracting over 3,000 reports to the International Meteor Organization. Fragments reached the ground in Koblenz, Germany — with the largest piece punching a football-sized hole through the roof of a residential building. No one was injured. ESA's Planetary Defence team estimates the original object was just a few metres across. 3. ISS Extended to 2032: The NASA Authorization Act of 2026 has passed the Senate Commerce Committee with bipartisan support, pushing the ISS retirement date from 2030 to September 2032. The extension aims to prevent a gap in U.S. human presence in low Earth orbit while commercial successor stations are developed. The bill also rejects proposed cuts to NASA's budget and funds key programmes including the Chandra X-ray Observatory. 4. ALMA's Milky Way Mosaic: The ALMA CMZ Exploration Survey (ACES) has produced the largest ALMA image ever — a sweeping 650-light-year mosaic of the Milky Way's Central Molecular Zone, assembled from hundreds of observations by over 160 scientists worldwide. The image reveals a intricate web of cold gas filaments feeding star formation near supermassive black hole Sagittarius A*, and detects dozens of molecules from simple silicon compounds to complex organics like methanol and ethanol. 5. 3D Map of the Early Universe: Using data from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), astronomers have created the largest 3D map yet of the universe as it appeared 9–11 billion years ago — during 'cosmic noon', the peak era of star formation. By tracking Lyman-alpha light from energised hydrogen rather than individual galaxies, the team revealed a hidden 'sea of light' filling the spaces between galaxies. The dataset comprised over 600 million spectra, with 95% still untapped for future research. 6. Jupiter's Retrograde Motion: Tonight, Jupiter begins its apparent reversal of direction against the background stars — a well-known optical illusion called retrograde motion caused by Earth overtaking the slower-moving outer planet in its orbit. Jupiter is well-placed in the evening sky and easily visible to the naked eye; binoculars will reveal its four bright Galilean moons. Links & Resources NASA Van Allen Probe A reentry update: nasa.gov/missions/van-allen-probes ESA fireball analysis: esa.int/Space_Safety/Planetary_Defence ALMA ACES Survey: almaobservatory.org | ESO press release: eso.org/public/news/eso2603/ HETDEX project: hetdex.org Astronomy Daily: astronomydaily.io | @AstroDailyPod on all platforms

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