Short Stuff: The Mars Rock with Signs of Life...

From the 1970s to the early 1990s a patch of land in Hong Kong the size of just a few football fields was the most densely-populated area in the world – and by a longshot. Even more remarkable, it was an outlaw land that somehow formed a tight community.See omnystudio.com/listene ...  Show more

Movies on planes have changed a lot in the last couple of decades. Today, we'll go over how this stuff works. See omnystudio.com/listener for privacy information. 

It’s the central question for the current generation of Mars missions. Since the first close-up pictures of the red planet back in 1965, decades of space missions have revealed our neighbouring planet to be cold, rocky and sterile. But there are hints of a more dramatic past; ...

Twenty years after NASA landed the first rover on Mars, theorists believe there’s more to the Red Planet than reported. Has NASA uncovered hints of an ancient civilization? Did our ancestors receive help from the Martians? Or better yet, is man already colonizing Mars? Learn more ...  Show more

From the ancient Egyptians to 16th-century scientists to NASA today — fascination with the Red Planet spans thousands of years. But Mars holds endless mysteries. How close are we to finding them out? Learn more about your ad choices. Visit podcastchoices.com/adchoices 

Half a mile below the surface of the earth, in a cave too hot to explore without an ice-packed suit, NASA scientist and Nat Geo explorer Penny Boston clambers around glassy crystals that are taller than telephone poles and wider than dinner tables. But it's not The Crystal Cave's ...  Show more