Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

On Wednesday, an unprecedented memo from the International Asteroid Warning Network reached the United Nations Office for ...

Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

A dive into probabilities, asteroid impact modeling, and what sort of damage an approximately 180-foot asteroid could cause ...

A planet that may support alien life has been discovered less than 20 light-years away from Earth - and it's believed to ...

A large asteroid could be heading toward Earth within the next decade, and there's a small chance it could strike the planet, according to NASA.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...

Starting Monday, Feb. 3, the day after Groundhog Day, you should be able to see another planetary parade in the night sky, ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

Experts are tracking asteroid 2024 YR4, which has a 1.2% chance of impacting Earth in 2032. Observations continue to refine ...