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?
Google's Chrome Frame plug-in makes Internet Explorer almost 10 times faster.
Several people holding the purse-strings agree that algae, hydrogen vehicles, and carbon capture and storage won't make money.
If overconfidence leads to global disasters such as bank collapses and world wars, how could it have evolved? Researchers have an answer.