Researchers report the discovery of a Saturn-sized exoplanet orbiting two M-dwarf stars, which are smaller and cooler than our sun. The findings from this discovery were published in the The ...

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Astronomers discover most exoplanets when they pass in front of their stars. Sometimes they discover one when they see a star wobbling slightly due to the planet’s gravity. But researchers at the ...

Using a relatively new planet-hunting technique that can spot worlds one-tenth the mass of our own, researchers have discovered a potentially rocky, icy body that may be the smallest planet yet found ...

Gravitational microlensing exploits the deflection of light from a background star by the gravitational field of a foreground lensing mass, allowing the detection of planets down to Earth mass and ...

Artist’s concept of how WFIRST will use microlensing – the bending and focusing of starlight via the gravity of distant objects – to search for exoplanets. WFIRST will focus on the region near the ...

It has been theorized that terrestrial planets born beyond 1–3 au could avoid being engulfed during the red-giant phases of their host stars. Nevertheless, only a few gas-giant planets have been ...

In context: NASA estimates that a single galaxy may harbor trillions of rogue planets. These starless worlds drift alone through interstellar space and have no parent star. They remain challenging to ...

Astronomers have discovered an extrasolar planet only three times more massive than our own, the smallest yet observed orbiting a normal star. The star itself is not large, perhaps as little as one ...