Nearly 60 years after NASA sent the first humans to ever land on our moon, the U.S. is going back with a series of ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump sign an executive order?

When NASA’s New Horizons spacecraft flew past Pluto in 2015, it transformed our understanding of the distant dwarf planet. What scientists discovered was far more complex than expected: towering ...

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...

When NASA’s New Horizons spacecraft flew past Pluto in 2015, it revealed a world far more active and complex than scientists expected. Researchers later found evidence that a liquid ocean may exist ...

The Solar System is a weird place filled with incredible physics and geological oddities that often break down in human terms ...

Jackson Barnes, a graduate student at Michigan State University, created a simulation that reproduces the objects "naturally ...

Findings support kinetic impact technique for planetary defense.

Ever wondered how those weird, floating \"snowmen\" way out in the deep freeze of the Kuiper Belt beyond Neptune's orbit ...

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...