Over the past few years, astronomers have catalogued several new exoplanets called "Super-Earths," rocky (and maybe watery) worlds sort of like our own — except a lot bigger. Here are what they might look like, according to science artists working with space agencies.
Gliese 163 c, orbiting the red dwarf Gliese 163, about 49 light-years from us, in the constellation Dorado. The planet has 7.2 times the mass of Earth.
Kepler-69c, a terrestrial extrasolar planet about 70% larger than Earth, orbiting Kepler-69, about 2,700 light-years form Earth in the constellation of Cygnus (the Swan).
(via NASA Ames/JPL-Caltech)
Gliese 581 e, with a minimum mass of 1.7 Earth masses. It's 20.5 light-years away in the constellation of Libra. There are three other planets in the background, with masses of about 7, 5 and 16 Earth-masses (left to right).
(via ESO/L. Calçada)
HD 85512 b, an exoplanet orbiting Gliese 370, about 36 light-years from Earth in the constellation of Vela, on the edge of the habitable zone. It has a minimum Earth mass of 3.6.
55 Cancri e, a planet orbits 25 times closer to its star than ours and has a really hot (3,140°F or 1726 °C) sun-facing side.
55 Cancri e, in the constellation Cancer, 40 light-years away from Earth. It could be a carbon planet, and it takes less than 18 hours to complete an orbit.
The Gliese 581g
(via Nicholas Kay)
Kepler-22b, about 600 light years away from Earth in the constellation of Cygnus. It's radius is 2.4 times the radius of Earth and has a 290 days long orbital period.
Gliese 667 Cb, orbiting around the star Gliese 667 in the constellation Scorpius, 22.7 light years away. Its minimum mass is about 4.39 Earth masses.
Kepler-62f, a planet roughly 40 percent larger than Earth, approximately 1,200 light-years from us in the constellation Lyra. It orbits it's host star every 267 days.