Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...
The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...
In 1988, the Soviet Union launched two of its most ambitious spacecraft ever built not toward Mars itself, but toward one of ...
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NASA is racing to save its Swift telescope from falling back to Earth with a daring rescue mission. The salvage effort gets ...