New Earth
The exoplanet is one of six believed to be orbiting a
dwarf star 42 light-years from Earth.The family of planets circling a relatively close
dwarf star has grown to six, including a potential rocky world at least seven
times more massive than Earth that is properly located for liquid water to
exist on its surface, a condition believed to be necessary for life.
Scientists added three new planets to three discovered
in 2008 orbiting an orange star called HD 40307, which is roughly
three-quarters as massive as the sun and located about 42 light-years away in
the constellation Pictor.
Of particular interest is the outermost planet, which
is believed to fly around its parent star over 200 days, a distance that places
it within HD 40307's so-called "habitable zone."