This stunning image features a deep field view of the Cassiopeia constellation where the two small planetary nebulas can be found, Abell 6 and the larger HFG1.

A strange blue ... sky. Breaking space news, the latest updates on rocket launches, skywatching events and more! X user Merlin Tomkins captured the wonder and mystery of this object in images ...

Videos posted on X showed a blue orb in the night sky that was visible in the U.K., France and other countries.

A mysterious blue spiral took over the skies in Europe on March 25, bringing alive conspiracy theory lovers. Pictures that ...