At a distance of 4.2 light years, Proxima b is the closest potentially habitable Earth-like planet outside our solar system. New research suggests this distant orb could be completely covered in water. So when do we go?
Yesterday, NASA’s Kepler team announced the discovery of the most Earth-like planet yet. It may be larger than Earth, but this exoplanet is situated firmly within its star’s habitable zone—and it’s been there for a while. So could it actually sustain life?
It may be a terrestrial planet, but the changing atmospheric conditions on the so-called “Diamond Planet” are absolutely nothing like what we experience here on Earth.
Kepler scientists have discovered the oldest known system of rocky, Earth-sized planets in the Milky Way. This suggests that terrestrial planets have appeared throughout most of the Universe's 13.8 billion year history — a potential indication of just how ancient some extraterrestrial civilizations could be.
The amazing Kepler Space Telescope has now catalogued over 1,000 exoplanets. Among them are eight new planets located within habitable zones, including two that astronomers say are the most Earth-like planets yet. Here's what we know about Kepler-438b and Kepler-442b.
It may not be anything like Tatooine of Star Wars, but this discovery is still incredible. We've found a frozen, rocky planet orbiting one of its two parent binary stars in a stable Earth-like orbit. This significantly expands our sense of where life can emerge in the galaxy.
Meet the "Mega Earth." Described today by astronomers from the Harvard-Smithsonian Center for Astrophysics, this ancient rocky world weighs 17 times as much as Earth — which is a big surprise considering that rocky, solid planets aren't supposed to get that huge.