CNET editor Sharon Profis takes Apple Pay, Google Wallet and PayPal for a test drive and compares the options.
The Air Force says that the almost one-of-a-kind spacecraft "conducted on-orbit experiments" in the the longest-ever mission for the X-37B program.
How do space agencies keep the International Space Station from smelling like a sweaty locker room? NASA engineer Robert Frost and retired astronaut Clayton C. Anderson reveal a few secrets.
A large comet swooped in close to Mars over the weekend. NASA's orbiters had to hide from the debris, but still captured some great shots.
A rare close flyby of a comet near Mars put NASA's orbiters in a potentially dangerous situation, but also allowed them to study the moving space object.
Here's when and where to experience this rare cosmic event -- and how to do it safely.
Using tech known as lidar, a device will map forests in 3D and increase understanding of their role in the carbon cycle.
The world's most powerful rocket, designed to carry humans to Mars, is scheduled for a test launch in 2018.
A fascinating NASA presentation suggests that in July 2012 Earth was one week away from being struck by a massive solar storm that would have had devastating effects. Can this be?
It's official: NASA moved their Space Launch System rocket from analysis to actual development, moving us one step closer to sending humans to Mars.