Earth-size planet (HD 137010 b) found orbiting a nearby star once a year, making it a promising target for finding life.

Astronomers have detected an Earth-size planet candidate orbiting a nearby star once a year, making it a promising target for ...

The planet completes one orbit around its host star in roughly 3.97 days and lies extremely close to it at a distance of ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

There is a category of planet that belongs to no star. It was thrown clear of its solar system early in the chaos of ...

The Double Asteroid Redirection Test (DART) mission not only altered an asteroid’s orbit but, for the first time, a new study shows we also successfully changed the asteroids' path around the sun.

On March 20, winter officially ends with the arrival of the astronomical spring in the Northern Hemisphere.

The spacecraft slowed down the system's 76,000 mph orbital speed... by two inches per hour. We're going to have to punch a lot harder if we want to save Earth.

Astronomers using NASA’s James Webb Space Telescope have produced the first three-dimensional map of Uranus’ ionosphere, ...

A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

The inner solar system is home to four rocky worlds that formed under the intense heat of the young Sun. This video explores Mercury, the scarred planet that is slowly shrinking; Venus, where a ...