This ‘Zero-G’ Airbus A300 parked on the tarmac at Bordeaux-Mérignac Airport is really a laboratory with wings. Within a week a dozen scientific teams will be aboard it as it thrusts skyward, then free ...

Have you ever wondered why a feather and a hammer fall at the same rate, despite their vast difference in weight? It’s one of the most puzzling phenomena of nature, and understanding it requires ...