Despite their striking appearance, Einstein Crosses aren't evidence of distant alien megastructures. However, they could help solve the lingering mystery of dark energy.
Astronomers have spotted a transient object they say is unique—and potentially a lot more energetic—than past examples they have witnessed, according to new research.
Strange radio waves detected by astronomers in recent days have led some to believe that a hidden stellar object may be lurking near the center of the Milky Way.
Scientists may be closing in on the mystery of fast radio bursts, with the help of new time estimates obtained by a team of researchers.