What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

NASA's planet-hunting mission, the Kepler Space Telescope, has just discovered Kepler-452b, a planet that scientists are calling "Earth 2.0." Scientists said in a press conference Thursday that they ...

For all our technological progress, humanity remains confined to a single planet. But that may not always be the case. Over ...

"Are we alone?" This ancient question has occupied humanity's mind for a long time. In 1995, the discovery of the first exoplanet orbiting a sun-like star opened the door to exploring this profound ...

The Kepler probe's focus is on finding another habitable planet. — -- NASA says we're on our way to discovering Earth 2.0. The Kepler Space Telescope has located a planet and star closely ...

CAPE CANAVERAL, Fla. -- An eighth planet has been found in a faraway solar system, matching our own in numbers. Even more amazing, machines and not humans made the discovery. NASA joined with Google ...

For the first time, astronomers have found a planet the size of Earth around another star. The scientists, using a sophisticated NASA observatory that scans incoming light from stars, announced the ...

NASA has discovered a new super-Earth that has a year only lasting a few hours. The exoplanet K2-141b, was found very close to its orange sun-like star, and has an orbital period of less than one ...