Rounded pebbles indicate ancient Mars had running streams and long periods of warm wet climate. Also; Earth's inner core is far younger than previously thought, and stunning new images of blue Earth-like skies on Pluto.

StarStuff with Stuart Gary

Best evidence yet that Mars was warm and wet

Hosted by Stuart Gary, StarStuff takes us on a weekly journey across the universe to see the death of stars and the birth of new worlds. StarStuff's tour of the cosmos examines those ultimate questions: where do we come from?; and are we alone? From Einstein's relativity theory to quantum mechanics, StarStuff reports on the latest news and discoveries in science, with a special focus on astronomy, space sciences and cosmology.

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StarStuff with Stuart Gary