The robotic X-37B has been circling Earth for nearly 719 days on its latest mystery mission, which is known as Orbital Test Vehicle 5 (OTV-5).
An explosion off Russia's Arctic coast has led to speculation that the incident resulted from a failed test of a nuclear-powered cruise missile. Do the details add up?
"Mad" Mike Hughes will have to wait until this weekend to launch after having issues with the water heater for his steam-powered rocket.
The proof took 30 years to be solved, but it's so simple and elegant that you can summarize it in a single tweet.
Here are some of the nerdiest science deals we're watching for Amazon Prime Day, including DIY robots, chemistry sets, molecule jewelry and more.
From gross and slimy to green and growing, these science kits are sure to be fun and educational for your kids.
Iran enriched uranium to 4.5%, breaking the limit of 3.67% set during the 2015 nuclear deal. Here's what that all means for the possibility of an Iranian bomb.