We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...
Add Yahoo as a preferred source to see more of our stories on Google. Firefighters fight a fire on the grounds of the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. Boris Roessler/dpa A ...
A preliminary study, based on a new method for dating ancient structures, suggests that the Great Pyramid of Khufu in Giza could be tens of thousands of years older than what traditional Egyptology ...
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