U.S. researchers have narrowed down their search for radio signals from intelligent life among the stars.
The Atacama Large Millimeter/submillimeter Array (ALMA) telescope has revealed huge streams of gas crossing a gap in the disc of matter orbiting a young star—a hypothesized [...]
In searching for worlds we humans might one day try to inhabit, the presence of water is among the most pertinent considerations.
Tau Ceti, one of our closest sun-like stars, has a planetary system, including a world in the habitable zone.
A recently discovered super-Earth orbiting a nearby star may be at least one-third diamond.
During its youth, the sun may have emitted a series of shock waves that caused the planets in our solar system to form at different times.
Despite their name, super-Earths—rocky exoplanets with a mass up to 10 times our own planet’s—may be uninhabitable, and are more diverse than realized.
The first known circumbinary, multi-planet system has been discovered: two planets orbiting a pair of stars about 5,000 light-years away in the constellation Cygnus.
The atmosphere of Tau Boötis b, a large “hot Jupiter” and one of the closest known exoplanets, has been analyzed using a new method that allows its weak planetshine to be [...]
NASA’s Kepler mission has revealed a solar system containing two worlds that are the closest known planets.