In the past three years, astronomers have discovered a mysterious new type of radio source. We call these long-period transients. These objects emit bright radio signals that repeat every few minutes ...

NASA’s Mars rover has spotted something out of this world — a mysterious, skull-shaped elevation – sitting on a slope where star-gazers say it doesn’t belong. The mysterious rock – dubbed “Skull Hill” ...

ATLANTA — More than 200 people across a half-dozen southern U.S. states have now reported witnessing a mysterious object streak across the sky on Thursday, but no one is certain exactly what it was.

Nov. 29, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend. When you purchase through links on our site, we may ...