Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Barnard's Star is a small, dim star, of the type that astronomers call red dwarfs . Consequently, even though it is one of ...

Planets change orbit shape around Neptune’s size. Metal-rich stars help giant planets form. Eccentric orbits suggest chaotic planet formation.

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.

I’m sure Kepler, the man, would be delighted to learn that a telescope named in his honor measured the subtle shapes of orbits of Earth-size planets around other stars.” ...

There's a class of objects in the cosmos that are neither stars, nor are they quite planets. Astronomers used the powerful ...

The discovery of Kepler-186f confirms that Earth-size planets exist in the habitable zone of other stars and signals a significant step closer to finding a world similar to Earth. Kepler-186f is ...

Astrophysicists have once again enriched our knowledge of the cosmos with a new discovery: two small planets orbiting ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard’s Star, the second-nearest star system to Earth. The four planets, each only about 20 ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

Researchers discovered a planet-forming disk that lasted 30 million years. This challenges previous estimates of 10 million ...