August 30, 2024

This Week in Space 126: Danger! Rogue Planets!

53 minutes

As if election season wasn't scary enough, now we have rogue planets to worry about! Out in the vast darkness between star systems, these worlds wander through the interstellar void, sometimes in pairs, and when they encounter a solar system, havoc can result. Add to the fact that they are hard to see, and you have a recipe for worry. Fortunately, we have astrophysicists like Dr. Rosalba Perna on the job, learning more about these strange, errant planets daily! Add to that the ever-increasing stash of data we're getting from the James Webb Space Telescope, and we can all sleep a bit better at night. Join us for a fascinating hour with Dr. Perna as we learn about rogue planets!

Headlines:

Boeing's Starliner spacecraft set to return to Earth robotically, without its crew, on September 6th, marking the end of its three-month mission.

SpaceX experiences a rare booster landing failure on its 23rd flight, ending a streak of successful landings

Astrobotic's Peregrine Lander failure attributed to a faulty valve and leaks

SpaceX's Polaris Dawn mission delayed due to weather concerns

Main Topic - Rogue Planets:

Dr. Perna explains rogue planets as worlds untethered to any star, floating freely in space

Discussion of the likelihood and potential impact of a rogue planet entering our solar system

Exploration of rogue planet formation theories, including ejection from solar systems and in-situ formation

The James Webb Space Telescope's role in discovering potential rogue planet pairs in the Orion Nebula

Challenges in confirming rogue planet candidates and distinguishing them from other celestial objects

The possibility of life on rogue planets, particularly those with moons experiencing tidal heating

Dr. Perna's computer simulations demonstrate how binary rogue planets could form and evolve

The upcoming Nancy Grace Roman Space Telescope's potential for discovering more rogue planets

Discussion of Dr. Perna's other research interests, including gamma-ray bursts and compact objects

Hosts: Rod Pyle and Tariq Malik

Guest: Rosalba Perna

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