This week is the best time in May to view the night sky. Here's everything you can see during May's dark skies, from an upside-down bear to some of the oldest stars in the universe.

While aboard the International Space Station, NASA astronauts Anne McClain and Nichole Ayers fly around the world every 90 ...

In 1979, the group Foreigner recorded the song “Head Games.” They could have been singing about the constellations Hercules ...