At dusk on a late October night in 1408, something mysterious lit up the skies above China. Ming Dynasty astronomers who recorded the phenomenon wrote that its brightness was intense enough to last at ...

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

This occurs when spending ample time in the sun and looking toward the sky, and it typically resolves over time. Long-term damage from UV rays include faster progression of cataracts and macular ...

While Jupiter will be big and bright, it’s not so easy to spot Uranus, especially without the aid of a mirror and a lot of flexibility. Look for a faint blue-green point of light about halfway ...

This is the spectacular moment sun rays cascaded through clouds at a scenic spot in China. Breathtaking footage captured by ...

Comet C/2023 A3 last visited Earth about 80,000 years ago. When it visits us in 2024, it could be about 100 times brighter than the green comet.

Residents in parts of New Jersey and Philadelphia shared photos of yellow sky, as tornado and thunderstorm warnings were in ...

The Moon moves across the sky and the planets show off their splendor from November 25 to December 2. ... while also scanning for bright rays of ejecta from these small craters.

The strawberry moon will reach peak illumination at 3:44 a.m. on June 11, 2025, according to the Almanac. The moon will ...

The German-led ROSAT mission, now decommissioned, was the first to detect X-rays from a comet, from Hyakutake in 1996. This was a great surprise. It took about five years before scientists had a ...