A group of scientists at Xerox PARC has claimed a breakthrough in blue laser technology which will increase the resolution of printers. The engineers said that they were able to create a Gallium Nitride blue diode laser at room temperatures. But machines are unlikely to be available for at least five years, the boffins said.
The spacecraft found traces of hydrogen and oxygen molecules, known as hydroxyls, embedded in the rocky surface of the asteroid
The skeleton was unearthed more than 20 years ago in South Africa
Moon's dark side is mountainous, rugged and never visible from the Earth
The groundwater basins in some areas of Tehran have been damaged irreversibly