Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

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Chun Han Wong covers Chinese politics and foreign policy for The Wall Street Journal. As a China-focused reporter for the Journal since 2014, he has written widely on subjects spanning elite politics, ...

With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system—and make contact. Propelled to a fifth the speed of light by a laser beam more ...