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Sunday Science: The Rays of the Sun

Bill McKibben The Crucial Years
The sun keeps pumping out more or less the same amount of energy day in and day out. It’s what we do down here on earth that will decide whether it cooks us or saves us.

Sunday Science: FAMILY TIES

Andrew Curry Science
Giant family trees based on ancient DNA from thousands of people are revealing prehistoric politics and social structure

Friday Nite Videos | October 6, 2023

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Trump Takes Real Step Toward Becoming House Speaker. Speaker of the House | Randy Rainbow Song Parody. Who Killed Che? Prison Health Care | John Oliver. What if We Bring Back Life From Mars?

Friday Nite Videos | September 29, 2023

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Get Up, Stand Up | Bob Marley Live at Munich. The Secret C.I.A. Operation That Haunts U.S.-Iran Relations. AOC Speaks at UAW Strike Rally. Insurance Reps Laugh at Denying Claim. The 'Transformer' That Crawls, Rolls and Flies.

A New Picture of When We Mated With Other Kinds of Humans

Maddie Burakoff and Laura Ungar AP
DNA evidence shows that H. sapiens mated with groups including Neanderthals and Denisovans. It even reveals evidence of other “ghost populations” — groups who are part of our genetic code, but whose fossils we haven’t found yet.
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