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Researchers have dated the mysterious skull from Petralona Cave in Greece to 300,000 years ago and concluded that the fossil belonged to an ancient human group that lived alongside Neanderthals.

Astronomers using the James Webb Space Telescope have detected the four oldest galaxies in the known universe, which are forming stars much faster than thought possible.

The disappearance of the gas giant's clouds is tied to the sun's 11-year cycle.