Ancient Earth might have had an extraterrestrial supply of vitamin delivered by carbon-rich meteorites, according to a new analysis by NASA-funded researchers. The result supports a theory that the origin of life may have .
This growing season, crop researchers are experimenting with the use of drones -- unmanned aerial vehicles -- on their farms. A crop sciences educator is using two drones to take aerial pictures of crops growing in research plots on the farms.
Workers can be seen on the moving line and forward fuselage assembly areas for the Joint Strike Fighter at Lockheed Martin Corp's factory located in Fort Worth, Texas in this October 2011 handout photo provided by Lockheed Martin.