An international team of astronomers reports the detection of two new brown dwarfs orbiting distant stars using NASA's ...

ran a series of model simulations that pointed to the presence of a small planetary companion to the known hot Jupiter. The new exoplanet is estimated to be 10–16 times the size of Earth, with a ...

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a ...

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But instead of circling their stars at separations comparable to the Jupiter-Sun distance, four of them had orbits far smaller than ... The time from one tug to the next is related to the planet's ...

The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new study.

Turns out, there’s a lot more floating around the planet Saturn than those famous rings. Space scientists announced last week they’ve discovered Saturn has 128 more moons, for a total of 274, far more ...