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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Steve Squyres Is Ready for Mars

Steve Squyres Is Ready for Mars

Doctor Steven Squyres talks about the challenges, human and robotic, facing the Mars Exploration Rover mission; Emily Lakdawalla is watching for shooting stars...on Mars, and Bruce Betts and Mat Kaplan attend the Planetary Society's holiday party.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

22 Dec 200327min

Mars Exploration Rover Update

Mars Exploration Rover Update

Planetary Radio gets a Mars Exploration Rover status report from Deputy Project Scientist, Dr. Albert Haldemann; Emily Lakdawalla can tell how old a planet is from its surface.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

15 Dec 200330min

Women in Space

Women in Space

Women in SpaceLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

8 Dec 200330min

A Wes Huntress Encore for the Beginning of Our Second Season

A Wes Huntress Encore for the Beginning of Our Second Season

A Wes Huntress Encore for the Beginning of Our Second SeasonLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

1 Dec 200328min

One year of Planetary Radio

One year of Planetary Radio

One year of Planetary RadioLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

24 Nov 200330min

The Planetary Society's Red Rover Goes To Mars Project with Emily Lakdawalla

The Planetary Society's Red Rover Goes To Mars Project with Emily Lakdawalla

The Planetary Society's Red Rover Goes To Mars Project with Emily LakdawallaLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

17 Nov 200330min

Moon Rocks, Martian Meteorites and More at the NASA Astromaterials Lab

Moon Rocks, Martian Meteorites and More at the NASA Astromaterials Lab

Moon Rocks, Martian Meteorites and More at the NASA Astromaterials LabLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

10 Nov 200329min

A South African Teen Joins the Student Astronauts

A South African Teen Joins the Student Astronauts

A South African Teen Joins the Student AstronautsLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

3 Nov 200329min

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