Planet Nine is our generation’s planet. It’s the perfect planet to find right now. Planet Ten, this is when I talk to kids, I tell them, “Planet Ten, it’s yours.

Our solar system used to have nine planets. Astronomer Mike Brown, also known as “the man who killed Pluto,” said he got hate mail from kids and obscene calls at 3 a.m. for years after his ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

Planet Nine's composition is probably "most like Neptune," due to its distance from the sun, Brown said. "That would put its diameter at something like two times the width of Earth," he added.

If you love a fantastic space-themed game, now is the perfect time to snatch up "The Crew," which is on sale for Amazon Prime Day for 30% off (now $10.45).

Our solar system used to have nine planets. Astronomer Mike Brown, also known as “the man who killed Pluto,” said he got hate mail from kids and obscene calls at 3 a.m. for years after his ...