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Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the ...

The Kepler-10 planetary system is clearly a ... while 10 c goes around in 45 days. The planets were discovered because the two worlds pass in front of their star, creating a small eclipse.

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious,” states a Cambridge University press release.

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a ...

The idea that our Solar System is representative of other solar systems hasn't survived the age of exoplanet discovery.

Researchers using the Hubble Space Telescope have discovered water vapor in the atmosphere of planet K2-18b, located about ...

NASA's James Webb Space Telescope has found water vapor swirling in the air of a distant, boiling-hot alien planet, a new ...