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NASA's Hubble Sees Martian Moon Orbiting the Red Planet
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NASA's Hubble Sees Martian Moon Orbiting the Red Planet

NASA / JPL · 2017-07-20 · photograph (digital archive)

From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.

About this work

The sharp eye of NASA's Hubble Space Telescope has captured the tiny moon Phobos during its orbital trek around Mars. Because the moon is so small, it appears star-like in the Hubble pictures. Over the course of 22 minutes, Hubble took 13 separate exposures, allowing astronomers to create a time-lapse video showing the diminutive moon's orbital path. The Hubble observations were intended to photograph Mars, and the moon's cameo appearance was a bonus.

NASA Image and Video Library’s own description
Credit lineNASA's Hubble Sees Martian Moon Orbiting the Red Planet. NASA/JPL, 2017-07-20. Public domain. ID: PIA21837.

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