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Ryugu Revelations, Martian Moon Theories & Galactic Shockwaves: #477

Ryugu Revelations, Martian Moon Theories & Galactic Shockwaves: #477

Space Nuts: Astronomy Insights & Cosmic Discoveries vor 1 Jahr

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34:09

Space Nuts Episode: Ryugu's Microbial Mystery, Martian Moon
Origins, and Galactic Collisions

Join Andrew Dunkley and Professor Fred Watson as they explore the
latest cosmic revelations. From unexpected microbial contamination
of Richie asteroid samples to a groundbreaking theory on the
formation of Mars's moons, and the first results from a new
instrument on the William Herschel Telescope, this episode is
packed with stellar insights and astronomical wonders.

Episode Highlights:

- Richie Asteroid Contamination: Delve into the challenges
of keeping extraterrestrial samples free from Earth's microbes.
Despite stringent sterilisation efforts, Richie samples returned by
Hayabusa2 show signs of terrestrial contamination, raising
questions about planetary protection protocols.

- Martian Moons' New Origin Theory: Discover a fresh
perspective on how Phobos and Deimos may have formed. A new model
suggests that these moons originated from debris of an asteroid
that broke apart due to Mars's gravitational forces, offering an
alternative to previous impact and capture theories.

- Galactic Collisions Unveiled: Explore the first findings
from the WEAVE instrument on the William Herschel Telescope. By
studying Stefan's Quintet, astronomers reveal the staggering speeds
of shock waves from colliding galaxies, shedding light on cosmic
interactions and future Milky Way-Andromeda collision
scenarios.

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Stay curious, keep looking up, and join us next time for more
stellar insights and cosmic wonders. Until then, clear skies and
happy stargazing.

00:00 - Andrew Dunkley: Coming up on this edition of Space
Nuts

01:15 - This episode will be officially released two days after
your 800th birthday

02:29 - Justin Jackson says Ryugu samples show effort to keep them
clean has failed

12:12 - If that can happen in a room that's designed not to allow
it

12:47 - New theory put forward about origin of moon's phobos and
Deimos

21:22 - Andrew Dunkley says spherical potatoes could be useful in
space missions

22:46 - Fred looks at an instrument connected to the William
Herschel telescope

26:45 - Professor Gavin Dalton has been working on the William
Herschel Telescope

31:30 - We've got similar collision speeds as Andromeda.

️ Episode References

Imperial College London

[imperial.ac.uk](https://www.imperial.ac.uk/)

Meteoritics and Planetary Science Journal

[wiley.com](https://onlinelibrary.wiley.com/journal/19455100)

phys.org

[phys.org](https://phys.org/)

Durham University

[durham.ac.uk](https://www.dur.ac.uk/)

NASA Spaceflight

[nasaspaceflight.com](https://www.nasaspaceflight.com/)

JAXA (Japanese Aerospace Exploration Agency)

[jaxa.jp](https://www.jaxa.jp/)

William Herschel Telescope

[ing.iac.es](http://www.ing.iac.es/astronomy/telescopes/wht/)

Isaac Newton Group of Telescopes

[ing.iac.es](http://www.ing.iac.es/)

Become a supporter of this podcast:
https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support.