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| Some Distant Planets |
An artist's impression shows a sunset seen from the super-Earth Gliese 667 Cc. Astronomers have estimated there are tens of billions of such rocky worlds orbiting faint red dwarf stars in the Milky Way alone.
Kepler-22b, the most Earth-like planet ever discovered, is circling a star 600 light years away. It is the smallest and the best positioned to have liquid water on its surface - among the ingredients necessary for life on Earth.
A view of a Saturn-sized planet orbiting 79 Ceti.
A newly discovered planet, designated by the unglamorous identifier of OGLE-2005-BLG-390Lb, orbits a red star five times less massive than the Sun and located at a distance of about 20,000 light years.
Kepler-11, a sun-like star around which six planets orbit. At times, two or more planets pass in front of the star at once, as shown in a simultaneous transit of three planets.
A hot, rocky, geologically active planet glowing in the deep red light of its nearby parent star, the M dwarf Gliese 876. The heat and the reddish light are among the few things about the planet that are certain, depending on the thickness and composition of its atmosphere - if any - it could range from being a barren, cratered ball of rock like Mercury or the Moon, to being a featureless, cloud-shrouded cue-ball like Venus.
An exoplanet 6 times the size of Earth circulating around its low-mass host star at a distance equal to 1/20th of the Earth-Sun distance. The host star is a companion to two other low-mass stars, which are seen here in the distance (L).
A fledgling solar system containing deep within it enough water vapor to fill all the oceans on Earth five times, located in our Milky Way galaxy about 1,000 light years from Earth in the constellation Perseus.
A view of the Whirlpool Galaxy showing the spiral galaxy's curving arms where newborn stars reside and its yellowish central core that serves as home for older stars.
The Elephant's Trunk Nebula, an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus.
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