A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...
When the interstellar traveler 'Oumuamua sped through our solar system in 2017, it left behind a lot of unanswered questions and a lot of scientific debate. Avi Loeb, an astrophysicist at Harvard, is ...
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