An astonishing blue fireball captured the eyes of many early Sunday morning as it quickly flew over the skies of Spain and Portugal, according to reports.

A stunning blue light likely caused by SpaceX Falcon 9 rocket fuel illuminated the night skies over Europe on Monday.

Stunning livecam imagery captured in Croatia shows a mesmerizing blue spiral in the night sky that left many people astounded on March 24. The phenomenon was likely caused by frozen fuel from the ...

The blue supermoon is expected to be visible until Wednesday, so if you missed it Monday night, you still have chances to view it this week. Below are photos from Monday.

Rare clouds that form in summer high up in the Earth's atmosphere have been seen from parts of Scotland. BBC Weather Watchers ...

Angel Reese had another stellar game on Wednesday night while lifting the Sky to a big win over the Wings in Chicago.

Although Sirius is predominantly a white star, you may also notice it twinkling red, white and blue. When stars appear lower in the night sky, they shine through more of Earth’s atmosphere.

Observe it when it’s low on the horizon to maximize the “moon illusion” and come back the next night to see it close to Saturn—but at no time expect it to look blue.

A mysterious light blue swirl puzzled skywatchers from Britain to Croatia on Monday night. Many thought it looked like an alien signal from a sci-fi movie. But the illumination appeared to be ...

A SpaceX rocket launch from Florida on Monday afternoon produced a dazzling display in the night sky above Europe, leading to some people asking Elon Musk what they were witnessing. The rocket ...

At least two lunar rainbows, including a stunning "double moonbow," have been spotted above the U.S. in the lead-up to the blue supermoon. And there is still a chance to see one of these elusive ...

Mesmerizing footage captured this blue spiral in the night sky in Croatia from a SpaceX Falcon 9 rocket. The phenomenon was likely caused by frozen fuel from the second stage of the launch and ...