An experimental NASA solar sail can be seen in the night sky as it orbits the Earth. NASA's Advanced Composite Solar Sail ...

It works similarly to how wind pushes against a sail on a boat. So too can sunlight push against a spacecraft to propel it through space. Incidentally, we call these spacecraft solar sails.

and a large solar sail would entirely control the mission. Current warning times for solar storms are only a few minutes at best, as the detectors watching for them are located in Low Earth Orbit.

"This is a very novel technology," he added. "We have traditionally relied on propulsion to take satellites from one place to another, and solar sail is providing a new way of traveling in space ...

No worry that the “Aquatanker,” designed by Australia’s Solar Sailor Holdings Ltd., has yet to be ordered and built. “The size of the concept needs vision from governments,” explains Solar Sailor CEO ...

36,706 people played the daily Crossword recently. Can you solve it faster than others?36,706 people played the daily Crossword recently. Can you solve it faster than others?

The five-digit code given verbally at the beginning of each Track was Mattel's way of enforcing use of the IntelliVoice to advance through the game. But if five digits seems too much to remember ...