The moon is waxing. The morning stars are Neptune, Mars and Saturn. The evening stars are Mercury, Jupiter, Uranus and Venus. Those born on this date are under the sign of Pisces. They include George Washington , war hero and first president of the...

While smaller than Uranus, the celestial body is much larger than Earth, but is also covered in water, for the most part. In addition, its surface is covered by an extremely thick and steamy atmosphere, further amplifying the mystery of how this...

Planets orbiting distant stars come in an even wider variety, including lava worlds and "hot Jupiters." Now, observations by NASA's Hubble Space Telescope have added a new type of planet to the mix. By analyzing the previously discovered world GJ1214b,...

Observations of the planet, which measures almost three times the size of Earth, suggest that it has a thick, steamy atmosphere. Scientists have discovered a new type of alien planet — a steamy waterworld that is larger than Earth but smaller than Uranus.

'GJ 1214b is like no planet we know of,' Berta told NASA. 'A huge fraction of its mass is made up of water.' This artist's impression of GJ 1214b provided by the European Space Agency shows the exoplanet orbiting a red dwarf star 40 light-years from...

The “waterworld” planet has a thick, steamy atmosphere and is smaller than Uranus but larger than Earth. “GJ1214b is like no planet we know of,” Zachory Berta of the Harvard-Smithsonian Center for Astrophysics (CfA) said in a press release. “A huge...