Astronomers have detected a planet around a nearby star that's not too cold, not too hot, and not much bigger than Earth.
Jupiter-like exoplanets are outnumbered by smaller planets three to one, say astronomers describing their cutting-edge work in progress.
CoRoT-7b, a hot super-Earth orbiting an orange dwarf in Monoceros, had proved to be rocky, not gaseous. It's truly a Dante-like inferno, with liquid-lava temperatures on one side and unearthly cold on the other.
The count of known planets outside the solar system continues to rise. At the time of this writing in mid-August, the tally stands at about 470. But it’s not just the rising number of known worlds that demonstrates the remarkably rapid progress in exoplanet research. Astronomers are finding new types of planets, especially those with…
For the first time, astronomers have detected the atmosphere of an exoplanet that is not a gas giant.
Two research teams combine forces to study the wildest exoplanet yet identified.
NASA’s Kepler mission has discovered a 5-planet system that includes a hot Mars and four super-Earths, two of which might host liquid water. These aren’t quite the Earth-like exoplanets Kepler’s been looking for, but they’re close.
Most alien planets are nothing like what we've got in the solar system. Scientists are homing in on these mysterious worlds to see what they’re made of.
From high-altitude clouds discovered on a super-Earth to massive, hurricane-force storms on a nearby brown dwarf, a bevy of results show that the age of “astrometeorology” is upon us.
Kapteyn’s star — a nearby star that likely formed outside this galaxy — hosts two planets more than twice as old as Earth.
Observations of nearby super-Earth 55 Cancri e reveal huge, as-yet unexplained changes in the exoplanet’s infrared emission, and volcanoes are one possible cause.