Reports about Enceladus come as NASA plans robotic mission to Europa, one of Jupiter's moons
Google's Internet-delivering balloon circles the Earth
Nanotech releases chemo drugs, then captures cancer-inducing proteins
Space agency maintains ties with Russia to maintain space station, ferry astronauts
Will living in deep space drive astronauts crazy? Six volunteers to find out
Autonomous robots expected to communicate and work with sailors
A popular video site would help Marissa Mayer mend Yahoo's image
Radiation emission could hit radios, power lines and satellites
An upcoming SpaceX cargo spacecraft will bring a pair of legs for Robonaut 2
Social net pays out $2B for Oculus and its vision of immersive online games
