How to spot an asteroid tonight

If you were to ask a group of dedicated amateur astronomers to list their favorite telescopic targets, few if any would mention asteroids. That’s easy to understand. The typical asteroid lacks the jaw-dropping visual impact of the Moon or Saturn. Through the eyepiece, an asteroid is an ordinary-looking stellar speck. […]

NASA’s Chandra Rings in New Year With Champagne Cluster

Celebrate the New Year with the “Champagne Cluster,” a galaxy cluster seen in this new image from NASA’s Chandra X-ray Observatory and optical telescopes. Astronomers discovered this galaxy cluster Dec. 31, 2020. The date, combined with the bubble-like appearance of the galaxies and the superheated gas seen with Chandra observations […]