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In White House bid, Harris plans tour of early-voting states

COLUMBIA, S.C. (AP) — In the first full month of her presidential campaign, Democratic Sen. Kamala Harris is planning a tour of the nation's...

Astronomers Have a Plan to Detect a Possible Black Hole in...

You may have heard about Planet Nine—a hypothetical planet thought to exist in the outer reaches of the solar system. One possibility is that...