Astronomers have spotted another never-before-seen "nova" blaze to life in the night sky. This may be the first time that ...

Celebrate the Fourth with the Fireworks Galaxy, then check out the Demon Star Algol and the Full Buck Moon in the sky this ...

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Mercury reaches its point of greatest eastern elongation on Friday (July 4), presenting an excellent opportunity to spot the ...

There will be three full moons during the summer. And the sky this season has a number of bright stars that form easily ...

Stargazers in the U.S. will find the waxing gibbous moon above the southwestern horizon as the sun sets on July 3, with Spica ...

Venus continues to be the “Morning Star” in the east before dawn, albeit it has become dimmer — but still bright — as it moves away from Earth.

Mars and Regulus will light up the night sky in a rare celestial display from the Red planet and icy blue star ...

Over time, these stars became known as Wolf-Rayet stars (Charles Wolf was a French astronomer, and helium was first detected ...

Stargazers may catch a cosmic light show this Fourth of July weekend over California when the Milky Way appears in the night ...

A new photo shows Mars shining like a red star in the night sky, alongside the blue-tinged "Heart of the Lion" star, Regulus.