Asteroid the size of 3 million elephants zooms past Earth
The asteroid, called 2020 XR, made its closest approach today at approximately 12:26 a.m. EST (0526 GMT), passing just under six times the distance between Earth and the moon. The flyby came on the fourth anniversary of 2020 XR's discovery,.
NASA, Earth and comet
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Though the space agency issued an alert at 4:27 a.m. ET, it also said that the impact would be "harmless." ...
Panyushkina and her team at the University of Arizona carefully dissected individual tree rings from ancient wood samples ...
Plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought—and may be a big ...
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An immersive exhibit at the Natural History Museum allows visitors to experience how the world will look in 2125.
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On Tuesday, a tiny, harmless asteroid was detected early before it was expected to burn up in Earth's atmosphere over Siberia ...
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