Data from NASA’s Spitzer Space Telescope has given scientists a first glimpse into conditions on the surface of a rocky exoplanet beyond the solar system. Planet LHS 3844b is located 48.6 light ...

Wright said if InSight’s location near the planet’s equator is representative of the rest of Mars, there would be enough water underground to fill a global ocean at a depth of about a mile.

A fully illuminated Pluto is difficult to catch from Earth because the inclination of the dwarf planet's orbit compared to our own. Skywatchers use the term "opposition" to refer to the point in ...

The planet is around 142 million miles from the Sun on average, with sunlight taking 13 minutes to reach the red planet's surface. A single Martian day lasts about 24.6 hours – while a year ...

The planet Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. There’s nothing to walk on, and no place to land a spaceship.

Mercury—an atmosphere-less planet where temperatures can reach 800 degrees Fahrenheit (430 degrees Celsius)—may have once hosted the chemical ingredients for life beneath its surface ...

Data from a retired NASA mission has revealed evidence of an underground reservoir of water deep beneath the surface of Mars, according to new research. A team of scientists estimates that there ...

NASA's DAVINCI mission, which is slated to launch to Venus in 2029, will carry a dime-sized, student-built sensor to study the planet's atmosphere and mountainous terrain for the first time.

The largest piece of rock from Mars ever found on Earth, weighing 54 pounds, was sold for an extraordinary price at an auction of rare geological and archaeological objects on Wednesday in New York.

By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid water to flood the planet with an ocean thousands of feet deep.

The planet Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. There’s nothing to walk on, and no place to land a spaceship. But how can that be?