Nature: When an advanced prototype train crashed into a maintenance wagon in Germany late last month, 23 passengers were killed. But the accident may have also dealt a mortal blow to the long-touted idea of fast passenger trains that float on magnets, says Ned Stafford.
The Week in Physics" is likely a reference to the regular updates or summaries of new physics research, such as those found in publications like Physics Today from AIP Publishing or on news aggregators like Phys.org.