Some extrasolar worlds are so large and so hot that they experience weather like nothing seen on Earth.
Scouring the cosmos for evidence of extraterrestrial life is going to be a major priority in the coming decades.
Scientists searching for life-bearing exoplanets have identified a new class of potentially habitable world.
Astronomers have identified an extrasolar planet that appears to have regenerated its own atmosphere.
Astronomers have discovered what could be an indication of a previously undiscovered extrasolar world.
Astronomers have identified a nearby extrasolar world that is not only terrestrial in nature, but also ancient.
A new NASA study has revealed just how many potentially habitable worlds there are in our galaxy.
Other stars may be able to host more than our own solar system's solitary habitable world, a new study suggests.
Scientists have highlighted the role of dust in cooling or warming an otherwise uninhabitable extrasolar world.
The closest known extrasolar planet may also be one of the most Earth-like worlds ever discovered.
Astronomers have identified a distant exoplanet with a size and orbit comparable to that of the Earth.
A relatively nearby extrasolar world discovered back in 2004 has since disappeared without a trace.
Scientists have discovered one of the most Earth-like extrasolar worlds ever seen and they almost missed it.
Scientists have identified an extrasolar planet with some of the most hostile surface conditions ever seen.
Astronomers have discovered a huge planet orbiting the burnt-out husk of a star that was once like the Sun.
Water vapor has been identified on what is being hailed as the most habitable exoplanet found to date.
Astrophysicists have discovered a way to detect the surviving cores of planets orbiting white dwarf stars.
The new worlds are so much like our own that both are now on a list of the 19 planets most likely to support life.
According to a new study, many planets in the so-called habitable zone can only support single-celled organisms.
Scientists have identified a potential new way to detect the presence of extraterrestrial life on distant worlds.