Four hundred light-years away in the star grouping Cygnus there lies a G-sort star a whole lot like our own Sun. Circling it is a planet researchers accept is very much alike to Earth in both measure and organization.

"This planet is a complete secret," says David Latham, a top brainbox at the Harvard-Smithsonian Center for Astrophysics. "We don't know how it structured or how it got to where it is today. Our main event know is that its not set to last until the end of time."

Kepler-78b is particularly Earthlike as exoplanets go: its the first known Earth-estimated planet with an Earth-like thickness. Kepler-78b is around the range of 20 percent bigger than the Earth, with a measurement of 9,200 miles, and weighs very nearly twice as much.

This faraway planet, identified by the Kepler space telescope thus named Kepler-78b, is not a potential second home for humankind (or outsider life along the same general lines as that of Earth).

That is in light of the fact that it circles its sun at a separation of only a million miles, as opposed to the 93 million that lie between us and Sol. Also its this which has top astro-boffins as far and wide as possible astounded.

Everything you could need in a planet with the exception of area.