A recent claim for evidence of life on Earth as early as 4.1 billion years ago runs headlong into prevailing theories about a period of heavy asteroid impacts and the reshuffling of the young solar... -- Read more on ScientificAmerican.com
A recent claim for evidence of life on Earth as early as 4.1 billion years ago runs headlong into prevailing theories about a period of heavy asteroid impacts and the reshuffling of the young solar... -- Read more on ScientificAmerican.com
Researchers built a physical model of the tail of the late Jurassic dinosaur Apatosaurus and found that its tail tip could have moved at supersonic speed to produce a whip-crack sound -- Read more on ScientificAmerican.com