Backyard stargazers get a monthly guide to the northern hemisphere's skywatching events with "Tonight's Sky." The March equinox still grants plenty of dark nighttime skies for planet-hunting.

"Tonight's Sky" is produced by HubbleSite.org, online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at HubbleSite.org.

Visit Tonight's Sky on HubbleSite.
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