The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Skywatchers across North America will witness a breathtaking total lunar eclipse on March 13-14, turning the moon a stunning red for over an hour.

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

The full Snow Moon earned its name because of the heavy snowfall that typically occurs throughout the month of February.

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Blue Ghost ...

Californians watching the sky in February have the chance to view a parade of planets and a snow moon. The planetary alignment that began in January will continue into February, according to ...

This absence is often called the “Black ... On that night, Venus will be the brightest it will be this year. It should be the brightest object in the sky apart from the moon.

Once the sun goes down on Monday, Feb. 3, six planets and the moon will line up across the California night sky. Mars ... include the eagle moon, the black bear moon, the groundhog moon and ...

then 50 minutes later each night for the next week until the New Moon. That guarantees pitch-black moonless night skies, perfect for capturing deep-sky objects and winter constellations. Use this ...

Editor's note: This page reflects news from Friday, Jan. 31. For the latest updates on the plane crash, please read USA TODAY's coverage of the investigation on Saturday, Feb. 1. WASHINGTON ...