Every planet in our solar system is essentially round. But out in the universe, are there any planets ... a gas giant twice the size of Jupiter and 1.5 times its mass that orbits a star nearly ...

When two giant planets collide, an even bigger world may be born. Based on new simulations, scientists believe that giant gas planets across the universe ... achieved super-size status by merging ...

Astronomers from MIT, the University of Liège in Belgium, and other institutions have stumbled upon a truly bizarre planet—an ...

More than 5000 Exoplanets have been discovered so far by humans in the Universe ... dynamics leading to the reduction in size of specific sub-Neptune planets. Christiansen's team suggested ...