‘Planet parade’ happens Jan. 21. How to watch from San Diego County
Six planets are set to align Tuesday evening, four of which will be visible to the naked eye, according to astronomers. NASA ...
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Astronomers Find Hundreds of ‘Hidden’ Black Holes — And There May Be Billions or Even Trillions More
Astronomers have recently uncovered hundreds of previously unknown supermassive black holes hidden in the depths of the universe. These black holes, which are buried behind dense clouds of gas and ...