The new moon occurs April 27, and a day later Venus and Saturn will make a close approach to each other (known as a ...

According to NASA, the planetary phenomenon will be clearest about 45 minutes before sunrise, low in the eastern sky and ...

Skywatchers can enjoy a celestial alignment of the crescent moon, Venus, and Saturn on April 25, with Mercury visible near ...

At 41 degrees south latitude, you would see seasonal changes of all of the southern hemisphere stars. The circumpolar ...

A rare alignment of the moon and three planets will give millions a reason to look up — and the view could leave stargazers ...

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

The Hubble Space Telescope marks its 35th anniversary with a stunning new image of the Sombrero Galaxy. This detailed view ...

Changing that overly spendy status quo is going to take something radical, and it’s hard to get more radical than what Slate ...