Think about background radiation and most people immediately think of the cosmic background radiation and stories of pigeon excrement during…
My book Night Sky with the Naked Eye publishes today. It would have never seen the light of day much less…
Hunting the elusive counter glow known as the gegenschein takes sharp eyes, dark skies, persistence and patience. This weekend provides…
Amateur astronomer Chris Schur of Arizona had only five minutes to observe and photograph Comet Catalina this morning before twilight…
If you've ever stood outside after twilight has passed, or a few hours before the sun rises at dawn, then…
Psst! Ever spy the planet Mercury? The most bashful of all the naked eye planets makes its best dawn appearance…
Sunrise over the surface of the moon: a series of star tracker images taken by LADEE Saturday, April 12. The…
Welcome to the first day of spring! If you have a clear night between now and April 1, celebrate the…
The result of sunlight reflected off fine particles of dust aligned along the plane of the Solar System, zodiacal light…
Sometimes, if you are lucky, dawn comes before the dawn. The zodiacal light – or false dawn, as it is…