A total lunar eclipse hasn't happened in years, and won't happen again for a few more, so now's the time to take in the ...

You may have seen a string of lights in the night sky overnight, but what are these lights and why are they in a straight ...

Valentine's Day could bring a dazzling display of the northern lights for stargazers in some parts of the U.S.

The rise of the "Snow Moon" today sets in motion a lunar orbit that will result in a total lunar eclipse for North America on ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Astronomers have mapped, for the first time, the three-dimensional structure of an exoplanet’s atmosphere, revealing ...

Astronomers have unlocked a new way to explore alien worlds by mapping the 3D structure of an exoplanet’s atmosphere for the ...

As someone who lives near the city, light pollution limits what I see when I look up at night. However, that doesn't mean I ...

As the Earth is buffeted by a stream escaping from a hole in the sun, those in the northernmost states may be in for a treat.

This Valentine's Day, stargazers in some parts of the United States will have the opportunity to experience the surreal views ...

From supermoons to a total eclipse to the national park’s biggest and best-attended star parties, these are the must-see celestial shows of the year ...

The Earth completes ... the other night. Ask students to fill each column with words, phrases and images that come to mind for each time of day. Students should note that it is light during ...