Much of the U.S. from the Rockies into the Northern Plains will see colder than normal temperatures starting Sunday into the ...

Arrokoth is composed of two separate bodies, 3 and 9 miles across. In the distant past they rotated so slowly about each other that their mutual gravitational attraction caused them to come together ...

Six planets grace the sky this month in what’s known as a planetary parade, and most can be seen with the naked eye. These planetary hangouts happen when several planets appear to line up in the night ...