Astronomers Found Earth's Fiery Twin
2013.10.31
![earth_kepler_78b.jpg earth_kepler_78b.jpg](/files/attach/images/1097/401/766/008/earth_kepler_78b.jpg)
NASA astronomers have "discovered the first Earth-sized planet outside the solar system that has a rocky composition like that of Earth."
Planet Kepler-78b orbits its host star every 8.5 hours, making it a blazing inferno and not suitable for life. Its star is "slightly smaller and less massive than the sun."
Located at 400-lightyears from us, earth's hell of a twin is in the constellation Cygnus.
![earth_hell_twin.jpg earth_hell_twin.jpg](/files/attach/images/1097/401/766/008/earth_hell_twin.jpg)
Image: An artist's concept of the Kepler-78b
According to NASA, Kepler-78b is 1.2 times the size of Earth and 1.7 times more massive, resulting in a density that is the same as Earth's. This suggests that Kepler-78b is also made primarily of rock and iron.
[NASA]
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