Tonight’s Sky: May 2015

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.“ In May, the Eta Aquarid meteor shower streaks through the sky, and face-on spiral galaxy M51 makes an appearance. “Tonight’s Sky“ is produced by , online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at . Visit Tonight’s Sky on HubbleSite.