A new theory of planet formation could mean that Earths and Super Earths were created when gas was stripped from gas giants. Scientists have found more than 600 alien planets so far.

According to the paper laying out the research behind the discovery, "TOI-1846b is a super-Earth-sized planet, with a radius ...

Astronomers have recently uncovered a remarkable planetary system around the faint orange star WASP-132, featuring two ...

The Solar System is a vast and mysterious realm, filled with planets, moons, asteroids, and icy bodies waiting to be ...

Gas-giant planets like Jupiter and Saturn form soon after their stars do, according to new research. Observations from NASA's Spitzer Space Telescope show that gas giants either form within the ...

They may have also been responsible for concentrated areas of specific building blocks that created gas giants and terrestrial planets, respectively. Images for use in reporting the discovery of ...

January 9, 2007 G. as-giant planets like Jupiter and Saturn form soon after their stars do, according to new research.. Observations from NASA’s Spitzer Space Telescope show that gas giants ...

These boundaries likely mark changes in composition as well: Planets smaller than 1.7 Earths are likely to be rocky terrestrial bodies, while those 3.9 times larger are apt to be gas giants, the ...

Between the four terrestrial planets–Mercury, Venus, Earth, and Mars–and the distant ice giants of Neptune and Uranus, sit two gas giants: Saturn and Jupiter. These planets are mostly composed ...

Gas-giant planets like Jupiter and Saturn form soon after their stars do, according to new research. Observations from NASA's Spitzer Space Telescope show that gas giants either form within the ...

Image: As planetesimals drift toward their star, they should clear out a path from the gas they move through. Some of that gas helps the planet to grow. Image credit: NASA/ JPL-Caltech/ T. Pyle ...

Gas-giant planets like Jupiter and Saturn form soon after their stars do, according to new research. Observations from NASA’s Spitzer Space Telescope show that gas giants either form within the ...