The red, brown and gray hunk is about 70% larger than the next largest piece of Mars found on Earth and represents nearly 7% ...

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 at NASA have discovered a new Earth-sized planet orbiting the habitable zone of its star. Data from NASA’s Transiting Exoplanet Survey Satellite (TESS) revealed the planet, called TOI ...

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 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.

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 new planet is almost the same size as Earth and swings around its home star, which is called LP 791-18, about once every three Earth days. Average temperatures there could spike to more than ...

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 ...