A wall of dust was barreling across northern China on April 23, 2014. Images collected by NASA's Aqua and Terra satellites two hours apart show how fast the dust advanced.
Satellite Shows Lake Superior Still Mostly Ice Covered
Though North America is a full month into astronomical spring, the Great Lakes have been slow to give up on winter. Lake Superior leads the pack, with more than 60 percent of its surface ice covered.
Firms Testing Inspection Drones
Drones from Skycatch and more established companies are monitoring power lines, inspecting oil and gas pipelines, checking wind turbines for defects and pinpointing malfunctioning solar panels.
UAS Helps Save Water During Drought
A California grower is hoping a thermal camera mounted on an unmanned aircraft system (UAS) will pick up irrigation line leaks in his pistachio orchard so he can fix them faster.
Sentinel Returns First Images
The European Space Agency's Sentinel-1A satellite's first radar images of Earth give a tantalizing glimpse of the kind of operational imagery the new mission will offer Europe's environmental monitoring program.
Early Sentinel Maneuver Underscores Space Debris Problem
Before it could begin imaging Earth, an unprecedented collision avoidance maneuver during launch and early orbit phase was needed to clear Sentinel-1A from the path of a defunct NASA satellite.
Landsat 7 Marks 15 Years of Earth Observation
Launched on April 15, 1999, the long-lived Landsat 7 mission celebrates a continuous, unbiased record of changes for 15 years and adds to the Landsat program's 42-year legacy.
Surveillance Drone Aids U.K. Firefighters
The U.K.'s Greater Manchester Fire and Rescue Service recently used an unmanned aircraft system to tackle a blaze that involved explosive gas cylinders.
Arctic Sea Ice Extent Continues Trending Lower
Arctic sea ice reached its annual maximum on March 21, 2014. Although the year wasn't extraordinary”the fifth lowest extent in 36 years of satellite records”the trend continues to be.
Researchers Scout for Elk with UAS Technology
A survey over a section of public land near Mount Vernon, Wash., was a first-time trial run using an unmanned aircraft system to survey elk in dense, forested areas to estimate herd population.
