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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Five Planets and the Moon over Australia

Explanation: It is not a coincidence that planets line up. That's because all of the planets orbit the Sun in (nearly) a single sheet called the plane of the ecliptic . When viewed from inside that plane -- as Earth dwellers are likely to do -- the planets all appear confined to a single band . It is a coincidence, though, when several of the brightest planets all appear in nearly the same direction. Such a coincidence was captured last week. Featured above, six planets and Earth's Moon were all imaged together last week, just after sunset, from Mornington Peninsula in Victoria , Australia . A second band is visible across the top of this tall image -- the central band of our Milky Way Galaxy .

Perseid Meteors 2016: Album 1 & Album 2

Date August 16, 2016
Credit Image Credit & Copyright: Alex Cherney ( Terrastro , TWAN )
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.