Not exact matches
The artist's concept depicts Kepler - 186f, the first validated Earth - size planet orbiting a
distant star in the habitable
zone — a range
of distances from a
star where liquid water might pool on the surface
of an orbiting planet.
When researchers observed
star systems containing debris disks with giant exoplanets in
distant orbits, they noted that the
star systems had similar dual dust disks analogous to the Solar System's two
zones — the asteroid belt (between Mars and Jupiter) and the Kuiper Belt (beyond the orbit
of Neptune).
radio signal in 1977 (the signal's source remains disputed); the 1996 announcement
of fossilized microbes in a Martian meteorite; the strange behavior
of Tabby's
Star reported in 2015; and 2017's discoveries
of exoplanets that exist within
distant habitable
zones.
On December 5, 2011, astronomers working on the Kepler Mission announced their first confirmation an extra-Solar, super-Earth-sized planet orbiting within the «habitable
zone»
of a
distant Sun - like
star (spectral class G5), which was discovered using Kepler.