Diminutive Barnards Star is closer in size to Jupiter than to the Sun. Only the three stars that make up the Alpha Centauri ...

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.

How do rogue planetary-mass objects – celestial bodies that fall between planets and stars in size – come into existence? An ...

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." ...

Meyer (University of Michigan) There's a class of objects in the cosmos that are neither stars, nor are they quite planets ... as they lack the heat and size of stars. But the Webb telescope ...

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

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 ...

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