Space exploration is no longer the domain of countries alone. It’s now rapidly becoming the domain of private interests.

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many bright planets at once.

Venus, Jupiter, Mars, Saturn, Neptune and Uranus — are likely to align in the night sky by the end of January, according to ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

Across the world from Aenos, Greece, to Zsekic, Hungary, dark sky parks are preserving a view of the stars for locals and tourists alike.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Our night sky is a thrilling window into the cosmos – and learning what’s up there doesn’t have to be complicated ...

The easy 3-mile drive to Firehole Lake or the drive over Dunraven Pass will help you slip away from the crowds to maximize ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

For years, Arlene Jurewicz-Leighton taught online courses for science educators. She noticed that her home in Lincolnville ...