Where did Earth’s water come from?

Most astronomers believe asteroids carried water to early Earth. But new research suggests it may have come from even closer to home.

The life and death of stars in Scorpius

This constellation is packed with plenty of beautiful targets, and with this list, you can trace stellar evolution.

Hawaii’s getting a stellar new observatory

With the arrival of the biggest solar telescope in the world, Haleakala is ready to step out of Mauna Kea’s shadow.

Galaxies in the gazelle

Early stargazers named this intriguing region spotted with galaxies after a familiar land mammal. It holds telescopic treats!

How to collimate your scope

Getting the most from your time under the sky starts with aligning the optics.

Testing great big binoculars

Top-notch optics, interchangeable eyepieces, and two 4-inch lenses make Oberwerk’s BT-100XL-ED Binocular Telescope one to view through.