Planetary Society All-Stars Review the Year i...

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

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

In the final episode of this series, Steve gives faint stars the side-eye, Helen sings a relatively short song about relativity and Matt gives a standing ovation to the desktop calculator that rerouted a space probe. Up, up and away!- Steve's bit (01:54)- Helen's bit (16:13)- Mat ...  Show more

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!

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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.