Planetariums around the world are invited to participate in this year’s edition of the IAU’s annual outreach event.

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from, including world-class observatories and six Dark Sky parks.

A green energy plant expected to be built in Chile could increase night-time sky brightness at one of the world's most valuable astronomical sites by up to 35% ...

Explore cutting-edge physics and astronomy at the University of Delaware. Our top-ranked programs, world-class faculty and state-of-the-art facilities prepare students for careers in research, ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here are all of your questions answered.

Space law doesn't protect historical sites, mining operations and bases on the moon – a space lawyer describes a framework that could ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from, including world-class observatories and six Dark Sky parks.

Explore cutting-edge physics and astronomy at the University of Delaware. Our top-ranked programs, world-class faculty and state-of-the-art facilities prepare students for careers in research, ...