Add Yahoo as a preferred source to see more of our stories on Google. A 10-year-old’s passion for Pluto has caught the attention of NASA thanks to a compelling, viral letter on social media. NASA now ...

It's been 20 years since Pluto was declassified as the ninth planet in our solar system, and many people wish it had never lost its status. A recent comment from NASA Administrator Jared Isaacman ...

COLORADO SPRINGS–Thirteen years ago a 20-m asteroid streaked without warning into Earth’s atmosphere before exploding over the Russian city of Chelyabinsk, injuring 1,500 people and causing widespread ...

A 10-year-old’s passion for Pluto has caught the attention of NASA thanks to a compelling, viral letter on social media. NASA now says it is "looking into" reclassifying Pluto as a planet. If that ...