On Dec. 13, 2011, analysts in the DigitalGlobe Analysis Center confirmed an image of the Varyag, China's first aircraft carrier, in the Yellow Sea on its second sea trial.
Shrubbery on the March Northward in Quebec
The northward expansion of vegetation may not be as dramatic as melting sea ice, but it's another key indicator researchers are watching to better understand global warming.
Unmanned Aircraft Mimics Insect Vision to Navigate
Researchers say small unmanned aircraft equipped with fisheye-lensed cameras now can use insect-like visual navigation to stay on track.
NORAD Boosts Ways to Track Santa
Once again, the North American Aerospace Defense Command will track Santa's yuletide journey”this year with cell phone apps, Google Earth and several other high-tech options.
Satellites Keep Tabs on Yellowstone's Plumbing
Proposed energy projects just outside Yellowstone National Park borders have some people fearing that Old Faithful and other national wonders could be sapped of their energy.
Satellite Data Show Reduced Toxic Air Emissions
Good news”satellite data combined with ground measurements indicate the Clean Air Interstate Rule, issued by the U.S. Environmental Protection Agency in 2005, is working in several states.
Cattle Rustling Family Nabbed by Drone
With 3,000 acres to cover and fearful of an armed standoff, a North Dakota sheriff calls in a Predator drone, modern military's wonder weapon, in the first drone-assisted arrest on U.S. soil.
Astrium Wins ESA Earth Observation Contract
Astrium has been selected by the European Space Agency as prime contractor for the Sentinel-5 Precursor satellite, a low-cost mission to monitor atmospheric chemistry.
NASA Readies Drone for Atmospheric Mission
NASA scientists are preparing to use the agency's Global Hawk drone to study the humidity and chemical composition of air entering the tropical tropopause layer of the atmosphere.
United Kingdom Invests in Radar Earth Observation Satellites
Once its NovaSAR constellation is operational, the U.K. government believes the Surrey Satellite Technology-built fleet could yield a 5,000 percent return on investment during the coming decade.
