Celebrate a Harvest Moon lunar eclipse and an occultation of the planet Saturn, just days before Neptune reaches opposition.

On September 22, our satellite passes in front of the famous star cluster M45 in a rare, breathtaking event, producing ...

On Tuesday evening, the Full Harvest Moon — also a Super Moon — undergoes a partial lunar eclipse visible across the U.S.

Astronomers have long investigated the effects of totality on animals, leaving one to wonder just what aspects trigger ...

Royal Observatory Greenwich’s Astronomy Photographer of the Year winners announced including nebulae, skyscapes, and more.

When selecting a suitable guiding camera, there are a few important parameters to consider. While in the past autoguiding cameras were CCDs, today’s cameras use CMOS technology. These sensors offer ...

Space travel comes with risk − and SpaceX’s Polaris Dawn mission will push the envelope further than any private mission has ...

The Owl Cluster, also known as NGC 457, is an open cluster in the constellation Cassiopeia. You can’t see it without optical ...

"We found an overdensity of planets in this region, indicating a sharp transition between the barren Neptunian Desert and the more populated Neptunian Savanna." ...

Astronomy Photographer of the Year, the annual photo competition showcasing all things space, is back. Ed Bloomer, senior ...

Images of the sky, stars and galaxies have the ability to strike wonder and awe. The Astronomy Photographer of the Year ...

Images of the sky, stars and galaxies have the ability to strike wonder and awe. The Astronomy Photographer of the Year ...