NASA's discoveries reveal water's prevalence beyond Earth, from subsurface oceans on moons to vapor in exoplanet atmospheres.

With Prime Day fast approaching, now's a good time to take a look at the best telescopes: Here are our picks of the best instruments for viewing the night sky. When you purchase through links on ...

Our guide to the best smart telescopes that will help you observe and capture images of the cosmos with just a tap of your smartphone or tablet. When you purchase through links on our site ...

What is the Allen Telescope Array? The Allen Telescope Array (ATA) is located at the Hat Creek Observatory in the Cascade Mountains of California, approximately 300 miles to the north of San Francisco ...