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Astronomers studying a sampling of red dwarf stars have concluded that these stars may collectively have billions of rocky planets in their habitable zones.
European astronomers analyzed over 100 M dwarf stars using an advanced spectrograph at the European Southern Observatory.
They found nine super-Earths, with masses one to ten times that of the Earth, orbiting these stars; two of the planets had orbits within the stars' habitable zones, where liquid water could exist on planetary surfaces.
Astronomers conclude that based on this reseach, there are about 100 super-Earths in the habitable zones of red dwarf stars within 10 parsecs / roughly 33 light years from Earth. Extended galaxy-wide, astronomers argue that there could be tens of billions of such planets in the Milky Way.
_http://www.eso.org/public/news/eso1214/
European astronomers analyzed over 100 M dwarf stars using an advanced spectrograph at the European Southern Observatory.
They found nine super-Earths, with masses one to ten times that of the Earth, orbiting these stars; two of the planets had orbits within the stars' habitable zones, where liquid water could exist on planetary surfaces.
Astronomers conclude that based on this reseach, there are about 100 super-Earths in the habitable zones of red dwarf stars within 10 parsecs / roughly 33 light years from Earth. Extended galaxy-wide, astronomers argue that there could be tens of billions of such planets in the Milky Way.
_http://www.eso.org/public/news/eso1214/