Some 25 million radio signals were detected, but all were eliminated by a clever computer code as terrestrial radio frequency interference. When you purchase through links on our site, we may earn an ...

As telescopes have become more powerful, we’ve been finding tons of “exoplanets”—planets orbiting faraway stars. One such planet, known as exoplanet TRAPPIST-1 d, has intrigued astronomers looking for ...

"At this point, we can rule out TRAPPIST-1d from a list of potential Earth twins or cousins." There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space ...