Earth asteroid lurked undetected for decades until a telescope in Hawaii spotted it earlier this year. It may be Earth's ...

Atthreeinthemorning,surveillancecamerasontheNorthThirdRingRoadinChengducapturedasilver-whiteorbsuspended… ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

Since late January, four vessels, including a suspected Chinese spy balloon, have been seen in U.S. and Canadian airspace and were all subsequently shot down by the U.S. military. Some details link ...

One of the most fundamental questions that scientists have tried to answer is how the moon formed. The prevailing theory is that some kind of object had an impact with Earth early in its history, and ...

New photos from the recent 'blood moon' eclipse show that interstellar comet 3I/ATLAS may be turning green as it gets closer to the Sun.

A team of astronomers announced Tuesday that a new satellite measuring roughly 90 football fields across was discovered ...