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.
Flere episoder fra "StarStuff with Stuart Gary"
How the Sun generates solar flares
29:28Astronomers observe for the first time how the Sun acts as a powerful accelerator. Also: The LISA Pathfinder launches on its mission to test Albert Einstein's General Theory of Relativity, and discovery of another possible dwarf planet out beyond Pluto.
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Milky Way could make stars for another six billion years
29:49The Milky Way has up to three times more star-forming material than previously thought. Also; sudden dramatic increase in X-ray flares blasting out of supermassive black hole at the centre of our galaxy, and stunning new views of Enceladus.