Topic: Sandia National Laboratories
The asteroid Apophis is very unlikely to smack Earth in 2036. That's the good news from a large group of planetary scientists meeting this week in Puerto Rico
10/08/2009 01:00 am
The list of cosmic objects that could hit Earth is growing. Scientists study satellite 'tractors' and nuclear weapons as ways to divert asteroids headed our way.
07/22/2009 01:00 am
Long-promised cellulosic ethanol is in modest production, but hurdles remain.
02/13/2009 12:00 am