Satellite Settles Sloping Sea Debate

Satellite Settles Sloping Sea Debate

For decades, scientists have disagreed about whether the sea is higher or lower heading north along the east coast of North America. What's the answer?

Aerial Mapping Aids Irish Taxman

Aerial Mapping Aids Irish Taxman

In Ireland, sophisticated aerial mapping will be used to measure a home's proximity to shops, transport links, schools and other amenities that have a bearing on property values.

More Satellite Evidence: Arctic Sea Ice Declining

More Satellite Evidence: Arctic Sea Ice Declining

New measurements from the European Space Agency's ice mission validates that the volume of Arctic sea ice has declined by 36 percent during autumn and 9 percent during winter between 2003 and 2012.

FAA Announces Plans for Drone Test Sites

FAA Announces Plans for Drone Test Sites

A future in which drones are as common in U.S. skies as piloted helicopters and airliners is a step closer with a government request for proposals to create six drone test sites around the country.

Satellite Tracks Ship Pollution

Satellite Tracks Ship Pollution

For more than a decade, scientists have observed ship tracks in natural-color satellite imagery. Now they can see that ships also have a more subtle, almost invisible signature.

Police Drones? Not So Fast

Police Drones? Not So Fast

Amidst growing debate about unmanned aircraft in U.S. airspace, Seattle's mayor tells police to abandon their plans, while Virginia lawmakers overwhelmingly prohibit drones for two years.