For his last episode as host, Mat Kaplan welcomes many of his Planetary Society colleagues for a review of a spectacular year of space exploration.
Nov 4
The night the Universe got bigger: An event to honor Hubble’s discovery
On the night of Oct. 5, 1923, Edwin Hubble spotted a variable star in Andromeda from Mt. Wilson Observatory above Pasadena, California, proving that our galaxy is just one of countless others in the Universe. Now, California Rep. Judy Chu, co-chair of the Planetary Science Caucus ... Show More
1h 6m
Oct 28
How Perseverance drove itself into the record books
NASA’s Perseverance rover has driven farther than any other vehicle on another world. On Oct. 11, 2026, its odometer reached 45.22 kilometers (28.10 miles), passing the record Opportunity spent about 15 years setting. Perseverance did it in about five and a half years. To celebra ... Show More
1 h
Oct 21
Meet the Winners of The Planetary Society’s 2026 STEP Grants
Every two years, The Planetary Society funds research through our STEP Grants (Science and Technology Empowered by the Public). This year, all three winning projects focus on small bodies in our Solar System, like asteroids and trans-Neptunian objects. Each one tackles a differen ... Show More
1h 6m
Jan 2022
Cosmic Queries – A Stellar New Year
<p>What will first contact with aliens be like? On this episode, Neil deGrasse Tyson and comic co-host Chuck Nice say “Happy New Year!” by answering a grab bag of fan questions about aliens, string theory, moon landing skeptics, and more!</p><p>NOTE: StarTalk+ Patrons can watch o ... Show More
38m 49s
Aug 2022
Season 5, Episode 32: Finale: Thanks for All the Gravity Assists
On the Gravity Assist podcast we have interviewed dozens of scientists, engineers, and others dedicated to the mission of NASA space exploration. After five years, the show is coming to a close. Here are some final thoughts and episode highlights from the podcast team.
24m 8s