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 and mineral patterns that may be potential biosignatures.

We begin with remarks from Morgan Cable, research scientist at NASA’s Jet Propulsion Laboratory and co–deputy principal investigator of the PIXL instrument on Perseverance, in a video released alongside NASA’s September 10, 2025 announcement. Then, host Sarah Al-Ahmed speaks with Joel Hurowitz, associate professor of geosciences at Stony Brook University and deputy principal investigator of the PIXL instrument on Perseverance, who is also the lead author of the new Nature paper detailing the findings. Hurowitz explains how textures nicknamed "poppy seeds" and "leopard spots" connect organic carbon with minerals like vivianite and greigite, and why these could represent some of the most compelling evidence yet for ancient microbial life on Mars.

Finally, in this week’s What’s Up, Bruce Betts, The Planetary Society’s chief scientist, joins Sarah to explore earlier moments in the history of Mars exploration when tantalizing hints of life sparked scientific and public excitement.

Discover more at: https://www.planetary.org/planetary-radio/2025-perseverence-biosignatures

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Looking Back: Jurrie van der Woude's 37 years at JPL

Looking Back: Jurrie van der Woude's 37 years at JPL

Looking Back: Jurrie van der Woude's 37 years at JPLLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

28 Apr 200335min

Return to Mars: Two Rover Landing Sites Chosen

Return to Mars: Two Rover Landing Sites Chosen

Matt Golombek tells us about the Mars Exploration Rover landing site selection process and the exciting destinations just chosen. What objects hold the solar system's speed record? We'll find out from Emily.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

21 Apr 200329min

A Microphone on Mars?

A Microphone on Mars?

What would you sound like on Mars? Berkeley researcher Greg Delory and the Planetary Society have developed the Mars Microphone, so that we can find out.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

14 Apr 200329min

Deep Space 1 / ET Phones Home!

Deep Space 1 / ET Phones Home!

Deep Space 1 / ET Phones Home!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

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Masters of Science Fiction

Masters of Science Fiction

Masters of Science FictionLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

31 Mars 200329min

A Visit With Sir Arthur C. Clarke

A Visit With Sir Arthur C. Clarke

A Visit With Sir Arthur C. ClarkeLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

24 Mars 200329min

SETI@home Aims Arecibo at the Best ET Candidates

SETI@home Aims Arecibo at the Best ET Candidates

SETI@home Aims Arecibo at the Best ET CandidatesLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

17 Mars 200329min

Life in the Extreme

Life in the Extreme

Life in the ExtremeLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

10 Mars 200330min

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