[ad_1] An exoplanet of the type at a distance of 500 light years, the Kepler-186f became the first known planet the size of Earth on the outside of the solar system orbiting …
Read More »They find the planet's "twin" planet at 500 light-years
[ad_1] An exoplanet of the type at a distance of 500 light years, the Kepler-186f became the first known planet the size of Earth on the outside of the solar system orbiting …
Read More »