A new finding is intended to spur action at the Copenhagen climate change conference.
DOE plans to fund research into organisms that make fuel without photosynthesis.
Will up-to-the-minute posts from the social Web freshen up Google's results?
The Hubble Space Telescope may be on the verge of finding the first evidence that spacetime is quantised
Cell phones remain less vulnerable than PCs, but for how long?
The government-appointed chairman is bringing big changes to the automaker.
Videos show a new program that lets robotic arms in a factory gracefully avoid each other.
The best of the rest from the Physics arXiv this week:
A new approach to nanoparticle detection can measure the number of particles, their mass, and even their size.
NASA reports on the performance of its historic test flight rocket, including why the parachutes failed.