Still, its sun is smaller and cooler than ours, and Gliese 667Cc's
orbital distance means it probably receives around 90 percent of the energy we get from the sun.
Not exact matches
He did, but even if you don't know what that
means, and simply put he found that a planet's
orbital period and
distance are related, very soon you can gaze through the new observatory here at the same stars and planets that Kepler observed 400 years ago.
That
means their gravitational force extends over a large range of
orbital distances, making it much harder to grow a planet like Earth and to keep it stable.
As an example, Mars orbits the Sun at a
mean orbital distance of 1.52 AU and thus can be observed as close as ~ 0.5 AU from the Earth.