If this theoretical second planet in the system is confirmed, it would become the smallest habitable-zone planet discovered by TESS, NASA's exoplanet-detecting satellite.

NASA announced a major milestone in the quest for life in the universe Monday: The discovery of another planet close enough to the sun it orbits to potentially support life. Called Kepler-22b, the ...

The planet, dubbed Kepler-22b, has a radius 2.4 times that of Earth and is 600 light years away, according to NASA. It's the first planet confirmed to be in a "habitable zone," a region around a ...

The hunt is on for a second Earth, somewhere out there in the Milky Way galaxy, but a newly discovered world is not quite the thing. It comes in at around 1.9 times the mass of Earth, orbiting its ...

Kepler-1649c is located 300 light-years from Earth. NASA described it as the "most similar to Earth in size and estimated temperature" out of the thousands of exoplanets discovered by Kepler.

NASA/Goddard Space Flight Center. "Planetary system's second Earth-size world discovered." ScienceDaily. ScienceDaily, 10 January 2023. <www.sciencedaily.com / releases / 2023 / 01 / 230110151046 ...

Scientists studying data from the Alpha Centauri star system on Wednesday announced what they believe is a second Earth-like planet orbiting the star closest to the sun.The finding, announced via ...

The first discovery of a second Earth will likely be another watershed moment for her and many, she said. "An Earth analogue has different implications," she said.

Like Earth, it’s made of rock. “This is a historic discovery,” said Geoff Marcy of the University of California, Berkeley, at a press conference introducing the new planet.