Featured Article
Here Comes Comet Heinze for the Holidays
Yeah, we're still all waiting for that next great “Comet of the Century” to make its presence known. In the…
Tales of Two Asteroid Occultations: Io, Nemausa Cast Shadows Over North America
Up for a challenge? Over the next two weekends, two asteroid occultations pass over North America. These are both occulting…
Images of Today’s Transit of Mercury From Around the World
Amazing reader images of today's transit of Mercury across the face of the Sun from around the world.
An Old Glass Plate Hints at a Potential New Exoplanet Discovery
How astronomers found an potentially new and exciting exoplanetary system lurking on a glass plate stored away for nearly a…
Into the Red: Our Complete Guide to Mars Opposition 2016
The time to observe Mars is now, as the Red Planet heads towards a favorable opposition in May 2016. Here's…
April Lunacy: Getting Ready for the Full ‘Mini-Moon’
Why this week's Full Moon is the smallest of 2016. It's Mini-Moon season!
Prelude to Transit: Catching Mercury Under Dusk Skies
One of the best dusk apparitions of the planet Mercury occurs this weekend... this event also sets us up for…
Teasing the Galactic Ghoul, Past and Present
The close call experienced by the ExoMars Trace Gas Orbiter is only one of the most recent brushes with catastrophe…
A Penumbral Lunar Eclipse Leads the Way to Easter Weekend
The first Full Moon after the vernal equinox not only sets us up for Easter this weekend, but features an…
Comet Craziness: 252P LINEAR Brightens, and a Close Pass for BA14 PanSTARRS
This week presents observational astronomers with two surprise treats, as Comet 252P/LINEAR brightens and heads north, and the second closest…