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After the interstellar asteroid 1I/ʻOumuamua and the interstellar comet 2I/Borisov, 3I/ATLAS is the third object and the second comet from outside the Solar System confirmed.
Geologists have discovered compelling evidence for preservation of Hadean rocks -- dating back to 4.16 billion years old -- in a complex geological sequence called the Nuvvuagittuq Greenstone Belt, ...
Using data from several space- and ground-based telescopes, NASA astronomers have captured a stunning new image of the Andromeda galaxy, which is the closest spiral galaxy to the Milky Way.
Astronomers have analyzed a statistical sample of 111 edge-on disk galaxies at various periods -- up to 11 billion years ago, or approximately 2.8 billion years after the Big Bang -- using archival ...
Archaeologists in Bolivia have discovered an ancient complex roughly 215 km (130 miles) south-east of Tiwanaku’s historical site, where a large, modular building with an integrated, sunken courtyard ...
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