We sent a message to aliens 50 years ago—this is what we said
In 1974, astronomers sent a call out into the cosmos from a massive telescope in Puerto Rico. The anniversary of the message brings reflections on a new missive to the stars and grief for a lost ...
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The secrets of fossil teeth revealed by the synchrotron: A long childhood is the prelude to the evolution of a large brain
Could social bonds be the key to human big brains? A study of the fossil teeth of early Homo from Georgia dating back 1.77 million years reveals a prolonged childhood despite a small brain and an ...