Better batteries and other storage technology will be key to making renewable energy dominant.
A draft version of a Senate bill that would limit greenhouse gas emissions is unveiled today.
Astronomers thought they knew why one otherwise ordinary star is shooting away from the Milky Way with a speed that exceeds the galactic escape velocity. Now they're not so sure
Supplies of plutonium for deep space exploration are running dangerously low.
The best soccer team in the world has only a 28 percent chance of winning the World Cup even if it makes it through to the knockout stages, according to a new statistical analysis.
SpaceX says that its spacecraft, which will carry cargo to orbit, is set for a maiden test flight.
Should we be more worried about Earth-impacting comets than about asteroids?
The best of the rest from the physics arXiv this week:
If our Universe once collided with another, we might soon be able to see the evidence in the distant reaches of the cosmos, say astrophysicists
What's the best technology for building color e-readers?