Dwarf Planet Ceres Thrills as a Dying Visitor Closes In

Dwarf Planet Ceres Thrills as a Dying Visitor Closes In

Ceres is the queen of the asteroid belt. Her first Earthly visitor is nearing its last days in spectacular style. Dawn Mission Director and Chief Engineer Marc Rayman returns with stunning images taken from just 35 kilometers or 22 miles above the dwarf planet, and a preview of the spacecraft’s last days. Planetary Society Chief Scientist Bruce Betts has a summer guide to the night sky, looks back in space exploration history and delivers another Random Space Fact. He and Mat Kaplan also have a new space trivia question for listeners. Learn more about all our topics this week: http://www.planetary.org/multimedia/planetary-radio/show/2018/0704-2018-marc-rayman-dawn-ceres.htmlLearn more about your ad choices. Visit megaphone.fm/adchoices

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2025 NASA’s Innovative Advanced Concepts Symposium: Part 2 — Hopping robots and the search for exoplanet magnetospheres

2025 NASA’s Innovative Advanced Concepts Symposium: Part 2 — Hopping robots and the search for exoplanet magnetospheres

In this second installment of Planetary Radio’s coverage from the 2025 NASA Innovative Advanced Concepts Symposium in Philadelphia, Pennsylvania, host Sarah Al-Ahmed highlights more of the technologie...

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Book Club Edition: Space Craze by Margaret Weitekamp

Book Club Edition: Space Craze by Margaret Weitekamp

The American fascination with spaceflight and what we might find out there began long before any human left Earth. It’s Dr. Margaret Weitekamp’s job to collect, document, and preserve the cultural art...

17 Loka 202555min

2025 NASA’s Innovative Advanced Concepts Symposium: Part 1 — Lunar glass and starshades

2025 NASA’s Innovative Advanced Concepts Symposium: Part 1 — Lunar glass and starshades

Each year, NASA’s Innovative Advanced Concepts program (NIAC) funds visionary ideas that could shape the future of space exploration. In this first of two episodes from the 2025 NIAC Symposium in Phil...

15 Loka 202553min

A Day of Action to save NASA science

A Day of Action to save NASA science

On October 6, 2025, hundreds of space advocates from across the United States joined The Planetary Society and 20 partner organizations on Capitol Hill to deliver one clear message: protect NASA’s sci...

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Space Policy Edition: China’s growing space science ambitions

Space Policy Edition: China’s growing space science ambitions

If the United States is indeed in a space race with China, then we cannot abandon space science. That’s the claim made by Maxwell Zhu and The Planetary Society’s chief of space policy, Casey Dreier, i...

3 Loka 202548min

Perseverance finds potential biosignatures in Jezero Crater

Perseverance finds potential biosignatures in Jezero Crater

NASA’s Perseverance rover has made one of its most intriguing discoveries yet in Jezero Crater. A rock sample called Sapphire Canyon, drilled from the Bright Angel formation, contains unusual chemical...

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Bill Nye: A star in Hollywood, a voice for NASA

Bill Nye: A star in Hollywood, a voice for NASA

Bill Nye, CEO of The Planetary Society, has officially joined the Hollywood Walk of Fame. In this episode, we speak with Bill about what this rare honor means to him and to science communication. Then...

24 Syys 202556min

Book Club Edition: Cosmos Award–winning author Dava Sobel

Book Club Edition: Cosmos Award–winning author Dava Sobel

Only six people have received The Planetary Society’s Cosmos Award for Outstanding Public Presentation of Science. We were honored to present it to author and historian Dava Sobel in May of 2025. She ...

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