Add Yahoo as a preferred source to see more of our stories on Google. A mysterious signal recorded by an Ohio State University astronomer in 1977 is getting a fictional explanation thanks to "3 Body ...

US government officials discussed war plans in a Signal chat, then blamed the leaks on the messaging app. But Signal and other encrypted apps are secure—as long as you use them correctly. I review ...

A printout sheet with the word "Wow!" written in red. The Wow! signal is one of the great astronomy puzzles of the past 50 years, but it's not so mysterious in the sci-fi universe of "3 Body Problem." ...

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On a day when temperatures soared into the high 80s, signal problems on the Red Line and parts of the Green Line caused delays across Greater Boston. On the Red Line, signal problems cropped up around ...