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

Ten days after that interview with the president, his then–special envoy for Latin America, Mauricio Claver-Carone, was ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Researchers from the search for extraterrestrial intelligence (SETI) may have figured out why we have not detected any alien ...