Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org

Today's 2 topics:

- Exciting new research indicates that there could be a lake of liquid water beneath the south Martian polar cap. Further research will be required to determine if this briny pool could be the home of martian creatures.

- There are likely to be hundreds smaller than softball sized and perhaps several dozen football to beachball sized, natural Earth mini moons, which are so small and fast moving that they are able to slip through asteroid hunters images without being detected.

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Hosted by Dr. Jacinta Delhaize & Dr. Daniel Cunnama.

𝗘𝗽𝗶𝘀𝗼𝗱𝗲 𝟰𝟴: 𝗔𝗧𝗟𝗔𝗦 - 𝗛𝗼𝗹𝗱𝗶𝗻𝗴 𝘂𝗽 𝘁𝗵𝗲 𝗛𝗲𝗮𝘃𝗲𝗻𝘀!

We’re joined by SAAO Astronomer Dr. Nicolas Erasmus who has been responsible for the newest telescope on the SAAO site (And he’s just had a comet named after him!)

𝗞𝗲𝗲𝗽 𝘄𝗮𝘁𝗰𝗵𝗶𝗻𝗴 𝘁𝗵𝗶𝘀 𝘃𝗶𝗱𝗲𝗼 𝗽𝗼𝘀𝘁 to see:

• what you can expect from this episode

• watch the animated sequence on the 3rd slide of discovery images for the 𝗳𝗶𝗿𝘀𝘁 𝗡𝗲𝗮𝗿-𝗘𝗮𝗿𝘁𝗵 𝗔𝘀𝘁𝗲𝗿𝗼𝗶𝗱

• the Sutherland 𝗔𝗧𝗟𝗔𝗦 station during construction in South Africa

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

From May 24, 2023.

We live at a time when technological advances are allowing us to explore ideas faster than ever before. So today, we bring you lab results on ice that affect how we see the outer solar system, and observations of galaxies that affect our understanding of the universe’s formation. We go from things smaller than a proton – which we just learned is 0.73 femtometers across -- to galaxy clusters 10s of millions of lightyears across. It’s all tied together, and we’ll tell you how. (This episode originally aired on television February 11, 2023.)

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

https://spacescoop.org/en/scoops/2318/a-rare-cosmic-magic-jug/

I present to you the “Cosmic Jug"!

Astronomers recently captured this rare structure using NSF NOIRLab’s Gemini South telescope. The image is that of a reflection nebula, nicknamed the Toby Jug Nebula, resembling the shape of an old style English pottery jug.

A Toby Jug? Whaaaaat? No, really. Go to Wikipedia and type it in. It’s fascinating!

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

From February 2, 2022.

By collecting and analyzing stories from a variety of indigenous cultures in North America, researchers find evidence for a mid-air explosion of a comet or asteroid, similar to the Tunguska event. Plus, a new Trojan for Earth, volcanoes and dinosaurs, ancient Mexican cacao groves, and this week in rocket history is Lunar Orbiter 3.

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

You can’t have everything.

– How big is the Universe?

Needless to say we just don’t know, beyond saying it’s at least as big as the observable Universe and very likely bigger. The real answer to the question may just be unknowable, since we will never see beyond the observable universe.

– Are we really not going to Mars in the 2030s?

Well, probably not. NASA’s moving target is now 2037, it was previously running with 2033 until an independent review looked at their current plan and said no way and also said no way to the next launch window in 2035, so it’s 2037 now – which Cheap Astronomy guesses will be pushed into 2040 in about three years.

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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http://cosmoquest.org/Donate This show is made possible through your donations. 

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

From May 7, 2009.

How do planets get their atmospheres? What would happen to the Earth if the Moon just disappeared? And what’s that strange glow we see after sunset?

- What would happen if the Moon disappeared — would that change Earth’s orbit?

- How do planets get atmospheres?

- I see a faint glow after sunset in the East — what could it be?

- Can light get stuck in orbit around a black hole?

- Where on Earth would I weigh the most?

- How much less would I weigh if the moon was directly overhead?

- How is ionized hydrogen detected in space?

- Do we live in an unbalanced Universe?

- Why do some celestial objects form in disks and others don’t?

- Could a spacecraft perform a “solar system assist,” in the way we do gravity assists?

- If Earth had no axial tilt, how eccentric would its orbit have to be to have  seasons like we have now?

- Does light have mass?

- The Cosmic Microwave Background is a redshift of the Big Bang.  If one could travel near light speed, would that counteract the redshift?

- Is repulsive gravity real?

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org

Today's 2 topics:

- Imagine a spacecraft traveling at a speed that would take it from New York to Tokyo in less than a minute, a mere 4 million miles from the surface of our Sun, where it would be exposed to about 500 times the solar radiation we receive here on Earth. Not science fiction but science fact for the NASA Parker Solar Probe on one of its final laps around our star.

- It has been 20 years since the world woke up to the news that a half mile diameter asteroid, 1997 XF11, discovered by Space Watch on Kitt Peak, had a slight chance of impacting the Earth in 2028. The NASA and JPL's Center for Near Earth Object Studies or CNEOS (see-neos) for short maps space rocks orbits, predicts when they will come close to us, and reliably determines each one's chance of impacting Earth.

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

http://cosmoquest.org/Donate This show is made possible through your donations. 

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

https://www.youtube.com/watch?v=SyjzcxpsKiU

From Jun 5, 2019.

Here is the Eagle nebula taken using off-the-shelf equipment available to the amateur astronomer.  This image was taken using a 17 inch reflector telescope with an SBIG 16803 CCD camera mounted on the back.  Taken over the course of an evening at a remote observatory in Landers California operated by OPT Telescopes.  

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

From May 17, 2023.

In this episode, we discuss one mass extinction, three stories with volcanoes, star formation, galaxy dissolution, and space mission synchronized observing. We also take a closer look at dark energy and dark matter and how giant galaxies in the early universe seem to indicate we may know even less than we thought. And rockets. There are always more rockets thanks to SpaceX. (This episode originally aired on television February 4, 2023)

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

http://cosmoquest.org/Donate This show is made possible through your donations. 

Thank you! (Haven't donated? It's not too late! Just click!)

------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].