The latest thinking about quantum gravity suggests that spacetime is two-dimensional on the smallest scale. And there may be a way to prove it.
The best of the rest from the Physics arXiv this week:
A quantum internet capable of sending perfectly secure messages has been running at Los Alamos National Labs for the last two and a half years, say researchers
An impressive array of backers are behind the new firm Planetary Resources.
What BMW’s decision to incorporate a gas engine into its new, electric i3 says about batteries.
One hundred percent renewable energy won’t come as easily as he thinks.
My blog about science illiteracy two days ago has fomented a mini-tempest–and some thoughts.
A new company launched by Google will seek to extend human life spans.
The absence of alien probes visiting the solar system places severe limits on the number of advanced civilizations that could be exploring the galaxy.
The good news: America’s science literacy rate is up from a pathetic 10 percent in 1988. The bad news: it’s still only 28 percent.