New earth-size planet discovered By George Petras, Traci Watson, Mitchell Thorson ... It’s probably a rocky world close in size to Earth and has 1.3 times the mass of Earth or larger.

The same team also discovered two new planets orbiting a second star. These planets are much larger, about twice the size of Earth, and they take six and 20 days to orbit their sun respectively.

A new, Earth-sized planet has been discovered only 90 light-years away from us. In astronomical terms, that’s right next door. What’s more, it might be capable of supporting life.

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

Astronomers have discovered an Earth-sized exoplanet orbiting a star with a lifespan 100 times greater than the Sun. Speculoos-3b is 55 light years away – more then 10 times further than the ...

Scientists have discovered a new planet that's 226 light-years away. It is roughly twice the size of Earth, which is rare for an exoplanet.

At 1400 light years away from Earth, scientist said Thursday they have discovered a planet they believe is the closest twin to our world ever found. WSJ's Monika Auger reports. Photo: NASA/JPL ...

New Earth-sized planet discovered next to star that will outlive the Sun. Scientists say Speculoos-3 b exoplanet orbits a star that will be one of the last to shine when the universe grows cold ...