A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

The night sky this week brings a first peek at the Lyrids Meteor Shower before its actual peak, plus planets including Venus, ...

April skies feature close planet pairings, a bright meteor shower, and stunning views of the ancient star cluster M3.

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

NASA's Advanced Composite Solar Sail System (ACS3) will be visible from the ground. Find out when you can see it on the NASA app on a mobile device. Credit: NASA/JPL-Caltech Democrat who won ...

The Leonids is a typical meteor shower most years, on pace with others such as the Lyrids and Orionids with around 15 ...

Astronomers have long suspected that an enormous, unseen planet is hiding somewhere far beyond Neptune, quietly shaping the ...

The discovery of natural satellites on Saturn assists researchers in understanding the dynamics of orbits, resonances, and ...

Capturing the partial solar eclipse from the iconic landmark at Stonehenge was awe-inspiring in more ways than one' ...

A twisting, whirling streamer of plasma escaping the sun in the aftermath of a coronal mass ejection (CME) has been captured ...

One of the great things about astronomy is that it’s always full of surprises, especially when it comes to comets — you just ...