The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

A new study reveals an intriguing possibility: asupernova explosion might have sent a surge of cosmic rays toward Earth around 10 million years ago, with consequences etched in ocean rocks. The ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

While it’s hard to see the solar wind directly in photos once it leaves the corona, we can measure the gas directly with instruments in space. Scientists have recently gotten up ...

Two recent studies used seismic data from NASA’s retired InSight mission to shed light on what lies beneath Mars’ surface and what it means for the planet’s history The spacecraft will map the ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record rate of 6.6 billion tons per second.

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

Hurricane Imelda formed on Tuesday as it moved away from Florida and the Bahamas with a path that could make a direct hit on Bermuda, according to the National Hurricane Center. As of the NHC’s 8 p.m.

The National Hurricane Center on Thursday began tracking a new potential tropical system targeting Florida, one of two systems with the potential to form into the season’s next tropical depression or ...