For decades, humanity has searched the universe for signs of alien life — but some scientists warn that finding it may come ...

The White House has appointed Harvard astronomer Avi Loeb to lead a new scientific advisory team investigating unidentified ...

NASA's Curiosity rover found pure sulfur crystals inside a rock after backing over and accidentally crushing it on May 30, ...

The Supreme Court has upheld a broad conception of birthright citizenship, rejecting President Donald Trump’s executive order.