The laws of physics have no preferred direction for time, unless you take quantum cosmology into account.
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The FAA has strict rules about how scientists can use lasers in the atmosphere. A new device can help protect aircraft
The best of the rest from the physics arXiv this week
A new model of the way the THz waves interact with DNA explains how the damage is done and why evidence has been so hard to gather
The optimism about the future of earthquake prediction is not justified by the quality of the forecasts
Fill a narrow box with beads and set it spinning and the resulting patterns are surprising, beautiful and unexplained.
The debate over whether nuclear decay rates change with temperature is about to get hotter.
The techniques developed for analyzing the data from particle accelerators could help spot debris impacts during space shuttle launches.
The best of the rest from the Physics arXiv this week:
The International Astronomical Union is refusing to name the exoplanets. That seems unnecessarily curmudgeonly.