This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two ...
YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a ...
Supermassive black holes, 1,000 times larger than previously thought, have been discovered in LRD-type galaxies. This ...
Observatories in Chile’s Atacama Desert, including the world’s largest optical telescope, could be blinded by light pollution ...
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