Astronomy day 2025 is upon us! To celebrate, we've picked six targets to emphasize the variety and scale of objects visible ...

Amazon is offering 27% off the Celestron StarSense Explorer DX 130AZ. Perfect for watching Saturn's opposition on Sept. 20.

Titan's shadow will fall on Saturn in the early hours of Sept. 20, one day before the world shines at opposition in Earth's ...

T urn your eyes to the east in the early morning hours of Sept. 16 to see the moon conspire with Jupiter and the bright stars of the Gemini constellation to create a lopsided rectangular formation in ...

We’ve checked out a bunch of them to help you find the best star maps app for your needs in 2025. Whether you’re a total beginner or a seasoned skywatcher, there’s likely an app that’s perfect for you ...

Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct.

We’ve all seen spectacular pictures of space, and it’s easy to assume that’s how it looks to the naked eye through a nice telescope. But in most cases, that’s simply not true.

The idea of spending my evenings along the river peering into the heavens sounded fun, so I added a Hestia to my pack. Here’s ...

Once you're in Harry's hut, you'll find a strange device on a table in the hut attached to it. Interact with the device by pressing the button, then flip the switch on the left side of it. It’s a ...

Understanding backfocus is essential for getting the best from your telescope or astrophotography setup. This ...

A UC Berkeley lab is controlling a NASA mission to study the farthest reaches of Earth’s atmosphere from afar using the Carruthers Geocorona Observatory.

"...The Space Telescope History Project, a joint enterprise of the National Air and Space Museum, Smithsonian Institution, and the History of Science Department, the ...