An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

In two studies, the researchers compared data collected by the Mars lander with craters spotted by NASA’s Mars Reconnaissance ...

A newly confirmed exoplanet around a nearby sunlike star might be astronomers’ best chance yet to look for life beyond the ...

NASA’s Lucy mission will continue its journey to explore the Jupiter Trojan asteroids, which share Jupiter’s orbit around the ...

Related: Giant 'kidney beans' spotted in Mars satellite images could ... traveling way past Uranus' orbit, with some even grazing Mercury's path. And they were relatively tiny, ranging from ...

The asteroid warning network is affiliated with the United Nations. Officials activate the IAWN when an asteroid bigger than ...

Mars reaches opposition, or its closest approach to our planet on this orbit, on Wednesday night ... it looked like there was a direct path.

The unassuming asteroid was first spotted in December by scientists at the NASA-funded Asteroid Terrestrial-impact Last Alert ...

Testing new crew exploration craft to return Americans to the moon by 2020 would then begin, with a goal of using the lunar surface as a launching point to Mars and beyond. The Bush plan ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

in its orbit around Earth, moves directly between our planet and another celestial object. In this case, Mars will appear to vanish behind the moon for several hours as it continues its path ...