NASA's Opportunity Mars rover will drive down a gully carved long ago by a fluid that might have been water, according to the latest plans for the 12-year-old mission. No Mars rover has done that before.
New global images of Mars from the MAVEN mission show the ultraviolet glow from the Martian atmosphere in unprecedented detail, revealing dynamic, previously invisible behavior. They include the first images of "nightglow" ...
Astronomers use observations of a gravitationally lensed galaxy to measure the properties of the early universe
Although the universe started out with a bang it quickly evolved to a relatively cool, dark place. After a few hundred thousand years the lights came back on and scientists are still trying to figure out why.
Researchers suggest a link between the solar cycle and the tidal effects of Venus, the Earth and Jupiter
The Sun's activity is determined by the Sun's magnetic field. Two combined effects are responsible for the latter: The omega and the alpha effect. Exactly where and how the alpha effect originates is currently unknown. Researchers ...
The Moon is bombarded by so much space rock that its surface gets a complete facelift every 81,000 years, according to a study released Wednesday based on NASA data.
Our corner of the Milky Way galaxy may be a bigger deal than scientists thought.
Europe's second attempt at reaching the Mars surface appeared in peril Thursday as initial analysis suggested a lander dubbed "Schiaparelli", a test-run for a future rover, may have plummeted to its demise.
The International Space Station received its first shipment from a private, Virginia-based company in more than two years Sunday following a sensational nighttime launch observed 250 miles up and down the East Coast.
A team of astrophysicists at the University of Portsmouth have created the largest ever map of voids and superclusters in the universe, which helps solve a long-standing cosmological mystery.
This shining disk of a spiral galaxy sits approximately 25 million light-years away from Earth in the constellation of Sculptor. Named NGC 24, the galaxy was discovered by British astronomer William Herschel in 1785, and ...