Leo sees action as both Mars and Comet Schwassmann-Wachmann 1 move through; plus, spot galaxies and noctilucent clouds in the sky this week.

These are the first public images collected by the Chile-based observatory, which will begin a decade-long survey of the southern sky later this year.

Puffy cumulus and drab stratus are mainstays in the scenery of our everyday life, but there are some extraordinary clouds ...

The James Webb Telescope reveals a never-before-seen infrared image: thousands of galaxies and ancient stars expose cosmic ...

United Launch Alliance will launch its 2nd batch of Amazon satellites into space — and it's possible people can see Atlas V ...

United Launch Alliance will launch its 2nd batch of Amazon satellites into space — and it's possible people can see Atlas V ...

Many flights to Bali cancelled after eruption spews ash 6 miles into sky - Authorities raise highest-level alert and create ...

But temperatures will be much cooler than typical for mid-June. The historical average for the week ahead, per National ...

UC Berkeley astronomers found a hidden black hole roaming far from the galaxy’s core. It may eventually merge with the ...

In Part 1 of the Minnesota Vice series, Customs pilots chase a rogue plane, TV reporters chase a mystery man, and a new DEA ...

Cirrocumulus cloud in a blue sky. Photo: Getty Images. ... 'Oh, it's all so stationary, pretty much, the clouds.' But then you only need to look away for a brief period and look back, ...