A sweeping new ICE operation shows how Donald Trump’s focus on immigration is reshaping federal law enforcement.

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

For the unversed, "Planet Nine" is a hypothetical planet which is reportedly larger than Earth that is thought to orbit ...

Our solar system is the only one known to have life inside. While scientists are searching for water in other planets, a new ...

Researchers found the object named 2017 OF201 while searching for "Planet Nine" - a hypothetical planet thought to exist ...

OF201 is incredibly lightweight on a cosmic scale. Scientists estimate its mass is about 20,000 times less than Earth’s and ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

Giant planets are not rare per se — after all, we have four in our own solar system. Such large worlds are, however, rarely ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have ...

How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...