Sharing dawn’s twilight with the Moon on September 29, Mercury was about as far from the Sun as it can wander, the innermost planet close to its maximum elongation in […]

Gorgeous spiral galaxy M33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as […]

Bright nebulae and star clusters along this 5 degree wide field of view are popular stops on telescopic tours of the constellation Sagittarius and the crowded starfields of the central […]

What surrounds the famous Eagle Nebula? The inside of the Eagle Nebula contains eggs — evaporating gaseous globules — that typically reside in tremendous pillars of gas and dust and […]