okt 102013
 
A Free-Floating Baby Planet Found

  An international team of astronomers has discovered an exotic young planet that is not orbiting a star. This free-floating planet, dubbed PSO J318.5-22, is just 80 light-years away from Earth and has a mass only six times that of Jupiter. The planet formed a mere 12 million years ago—a newborn in planet lifetimes. Artist’s [continue reading]

jun 282013
 
Gas-Giant Exoplanets Cling Close to Their Parent Star

  Gemini Observatory’s Planet-Finding Campaign finds that, around many types of stars, distant gas-giant planets are rare and prefer to cling close to their parent stars. The impact on theories of planet formation could be significant. Artist’s rendering of a possible exoplanetary system with a gas-giant planet orbiting close to his parent star which is [continue reading]