NPR & PBS for South Texas
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

Signs of Life on Mars? NASA's Discovery, Explained

Season 52 | 3m 38s

Billions of years ago, Mars’ Jezero Crater held a lake fed by rivers that could have carried minerals and maybe even organic matter. On Earth, places like that are teeming with microbial life.

National Corporate funding for NOVA is provided by Carlisle Companies and Viking Cruises. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.
Extras
How does a densely populated nation like Singapore transform into a lush green oasis?
The story behind one man’s historic descent of Mount Everest on skis
Peace remains elusive for Lebanese Christians as Pope Leo visits war-torn country
News Wrap: Netanyahu asks Israel’s president for pardon amid corruption trial
November 30, 2025 - PBS News Weekend full episode
Former USAID employees keep dismantled agency’s life-saving work afloat
Whooping cough cases remain elevated as vaccination rates drop
Millions of full-time workers are struggling to afford a place to live. Here’s why
News Wrap: Trump declares Venezuela’s airspace ‘closed’ after weeks of escalating tensions
Latest Episodes
See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Follow ancient humans’ journey into an icy and perilous new land.
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
Trace the remarkable origin story of Homo sapiens and the crucial moments that shaped our species.
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.