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Science
Planetary Radio: Space Exploration, Astronomy and Science
by The Planetary Society
Today: #116 in Science on our combined chart.
Today: #157 in Science, United Kingdom on our combined chart.
Today: #138 in Science, India on our combined chart.
Today: #151 in Science, Japan on our combined chart.
Chart positions today · United States
Not on the Canada charts we track today.
Not on the Australia charts we track today.
Not on the Germany charts we track today.
Not on the Brazil charts we track today.
Not on the Mexico charts we track today.
Not on the New Zealand charts we track today.
Not on the Ireland charts we track today.
Not on the Philippines charts we track today.
Not on the South Africa charts we track today.
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Ranking history · United States
Latest daily rankings: Oct 21. New rankings will appear after the next update.
Position on the Science combined chart over the last 7 days. Toggle platforms to compare their positions. Lower rank numbers are better.
View as table
| Date | Combined Rank | Apple Podcasts | Castbox |
|---|---|---|---|
| Oct 21 | #116 | #100 | #98 |
| Oct 20 | #120 | #105 | #93 |
| Oct 19 | #111 | #89 | #85 |
| Oct 18 | #104 | #83 | #69 |
| Oct 17 | #105 | #84 | #90 |
| Oct 16 | #120 | #102 | #79 |
| Oct 15 | #112 | #94 | #92 |
Latest episodes
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Meet the Winners of The Planetary Society’s 2026 STEP Grants
October 21, 2026 · 1 hr 6 minEvery 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…
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Book Club Edition: Dinner With an Astronaut by Leroy Chiao
October 16, 2026 · 1 hr 14 minLeroy Chiao was one of the youngest astronauts ever selected. He would spend 229 days in low-Earth orbit, command the International Space Station, and perform three spacewalks. His book, “Dinner with an Astronaut,” chronicles his journey…
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From the Mojave to Phobos: PlanetVac rides with MMX
October 14, 2026 · 1 hr 4 minJapan’s Martian Moons eXploration mission, MMX, is about to set out for Phobos and Deimos, the two small moons of Mars. If all goes well, it will bring the first-ever sample from the Martian system back to Earth. Asa Stahl, public outreach…
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Space Policy Edition: What does “science as a service” really mean?
October 9, 2026 · 1 hr 17 minCan you buy science the way you buy a rocket launch? NASA is exploring the idea of “science as a service,” asking industry how commercial companies could provide scientific data and capabilities for Earth science, space weather, and…
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2026 NASA's Innovative Advanced Concepts Symposium: Part 2 — Solar sails and breathing beyond Earth
October 7, 2026 · 1 hr 0 minIn this second of two episodes from the 2026 NASA Innovative Advanced Concepts (NIAC) Symposium at Wichita State University, Sarah Al-Ahmed talks with researchers developing the propulsion and life support technologies that could open up…
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2026 NASA's Innovative Advanced Concepts Symposium: Part 1 — Nuclear sensors and cave explorers
September 30, 2026 · 1 hr 1 minSome of the most exciting science in our Solar System is hidden in places we've never been able to reach. In this episode, Sarah Al-Ahmed shares three conversations from the 2026 NASA Innovative Advanced Concepts (NIAC)Symposium at Wichita…
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Hayabusa2 flies by asteroid Torifune
September 23, 2026 · 1 hr 1 minJAXA's Hayabusa2 flew within 400 meters (1,300 feet) of asteroid Torifune on July 5 and confirmed that it's a contact binary, two lobes stuck together. Paul Abell, NASA's Chief Scientist for Small Body Exploration at Johnson Space Center…
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Book Club Edition: Alien Oceans by Kevin Hand
September 18, 2026 · 1 hr 7 minWhere are we most likely to find evidence of life, past or living, in the Solar System? Planetary scientist and author Kevin Hand looks to warm, salty ocean depths beneath protective layers of ice on worlds such as Europa and Enceladus…
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Star Trek at 60: What Vulcans and Klingons can teach us about being human (Part 2)
September 16, 2026 · 1 hr 7 minThis is part two of our Star Trek 60th anniversary series. Robert Picardo, the Emergency Medical Hologram on Star Trek: Voyager and a member of The Planetary Society's board of directors, reads a vintage letter from Star Trek creator Gene…
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Star Trek at 60: What do we value the most? (Part 1)
September 9, 2026 · 60 minStar Trek turned 60 on Sept. 8, 2026, and to celebrate, we're kicking off a special two-part series exploring the franchise's deep and lasting connection to real-world space exploration. In Part 1, Robert Picardo, the Emergency Medical…
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Space Policy Edition: The Long Space Age with Alex MacDonald
September 4, 2026 · 1 hr 8 minWe tend to think of private space exploration as a recent phenomenon. But as Alex MacDonald, former Chief Economist at NASA, argues in his book "The Long Space Age," privately funded space exploration has deep roots in American history…
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World Space Week and farewell to Swift
September 2, 2026 · 1 hr 4 minDennis Stone, president and co-founder of the World Space Week Association, takes us behind the scenes of the largest annual space event on Earth. From its origins as a volunteer effort in Houston to a UN-declared celebration reaching…
About the show
Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.