Zeptoseconds: New world record in short time measurement

In 1999, the Egyptian chemist Ahmed Zewail received the Nobel Prize for measuring the speed at which molecules change their shape. He founded femtochemistry using ultrashort laser flashes: the formation and breakup of chemical ...

Virgin Galactic reports high interest in its space flights

Virgin Galactic has received nearly 8,000 online reservations of interest since its first successful test flight into space 14 months ago, the company said Tuesday as it nears commercial operation and prepares to reopen ticket ...

Space tourism projects at a glance

Virgin Galactic later this month in Mojave, California, is preparing to roll out its new SpaceShipTwo, a vehicle the company hopes will one day take tourists to the edge of space. It comes roughly 15½ months since an earlier ...

Breaking the code of royal purple

Royal purple, the color of robes swathing the emperors of Rome, ancient kings and high priests, and prized for its richness of hue and a brightness that wouldn't fade, has long carried its own molecular mystery.

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