Walkabout the Galaxy Podcast
1) Snowball Earth was Cold and Scary and the Milky Way Magnetic Field is a Mess
The Earth spent some crazy amounts of time (tens of millions of years) completely frozen over. And not, in the grand scheme of things, all that long ago. New research shows the ocean was salty and sup...Show More
2) Planetary Nebulae and Active Asteroids Get a Closer Look
There's always been a fuzzy line between asteroids and comets, and new observations of asteroids in the vicinity of Jupiter provide a hint to the origin of the mysterious active asteroids that look li...Show More
3) A Dark Universe Unveiled
Scientists head to the volcanic fields of Iceland to test instruments for the VERITAS mission to Venus, Artemis II is ready for its historic flight to the Moon, and the Dark Energy Survey reveals the ...Show More
4) Crazy Spinners in the Asteroid Belt and S8 Tension
The amazing discoveries from the Vera C. Rubin Observatory have already started, and the astroquarks take a look at some close to home. Asteroids bigger than a city block spinning in fewer than 5 minu...Show More
5) Cosmic Rays from Everywhere and Stringy Ancient Galaxies
The Parker Solar Probe flies through the Sun's corona, MAVEN has gone silent, and new data shed light on the origins of cosmic rays. JWST's observations of ancient galaxies reveal odd shapes that may ...Show More
6) Interstellar Star Scars and Poop on Mars
We explore the dining and drinking choices for astronauts, complex chemicals discovered in asteroid samples, and untangling the web of scars in the local interstellar cloud to reveal past encounters o...Show More
7) Gravothermalizing and Baby Black Holes
There's a new funky proposal for small black holes in the early universe, and another potential dark matter candidate. Learn about cannibal stars and much more, together with double trivia and space n...Show More
8) An Ancient Moon of Mars?
The story behind this investigation is almost more cool than the discovery itself. Microlayers of sediments in Mars' Gale Crater, observed by NASA's Curiosity rover, are indicative of tidal sloshing o...Show More
9) Why Is There A Universe At All?
Things would be a lot simpler and a lot less interesting if charge parity existed in the universe, but there would be no one to appreciate that simplicity because we would not exist! New results from ...Show More
10) The Amazing and Crazy Story of Gemini and Jumbo Black Holes
The astroquarks are joined by Jeffrey Kluger, editor at large at Time Magazine and author of 13 books including Apollo 13 and the new book on the Gemini program. Tune in to hear about some of the outl...Show More