A treat for stargazers in the United States, as the Northern Lights might be visible in at least 14 states on Wednesday night, the National Oceanic and Atmospheric Administration's Space Weather ...

This deep view of the Orion Constellation glows in reddish hues thanks to a filtered view of hydrogen alpha emission, a type ...

In recent months, eight U.S. cities have experienced unnaturally colored skies—ranging from eerie green glows and purple ...