News tagged with rocky planet

Jupiter twin discovered around solar twin

Astronomers have used the ESO 3.6-metre telescope to identify a planet just like Jupiter orbiting at the same distance from a Sun-like star, HIP 11915. According to current theories, the formation of Jupiter-mass planets ...

dateJul 15, 2015 in Astronomy
shares2285 comments 1

Mercury's magnetic field -- nipped in the bud

( -- Mercury, the smallest of the eight planets with a diameter of 4900 kilometres and the closest to the Sun, looks more like the Moon than the Earth from the outside. It is the only rocky planet that has a global ...

dateDec 23, 2011 in Space Exploration
shares2 comments 27

Clocking Neptune's spin

( -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets in our solar ...

dateJun 29, 2011 in Astronomy
shares0 comments 3

Our unlikely solar system

Recent modeling of solar mass stars with planetary systems, found that a system with four rocky planets and four gas giants in stable orbits – and only a sparsely populated outer belt of planetesimals – has only ...

dateApr 11, 2011 in Astronomy
shares0 comments 116