In recent years, the search for an Earth-like planet orbiting another star has been the most exciting in science. The world has waited with baited breath for the discovery of another Earth.
Gliese 4581 g, the fourth rock from a red dwarf some 20 light years from Earth in the constellation of Libra
GJ 1214 b, a sub-Neptune-sized planet orbiting a star in the constellation of Ophiucus 40 light years away
and HD 28185 b, a gas giant in a near circular orbit that is entirely within the habitable zone of a Sun-like star in the constellation of Eridanus. This planet’s moons, if it has any, may be good candidates for ‘other Earths’
Today, we can add another strange planet to the list: 55 Cancri f, one of five planets known to orbit an orange dwarf star some 40 light years away in the constellation of Cancer.
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