A University of Alaska Fairbanks-led research team has developed a way to use satellite images to determine the amount of methane being released from northern lakes, a technique that could help climate change modelers better account for this potent greenhouse gas. By using synthetic aperture radar, or SAR, researchers were able to find a […]
A gigantic cavity — two-thirds the area of Manhattan and almost 1,000 feet (300 meters) tall — growing at the bottom of Thwaites Glacier in West Antarctica is one of several disturbing discoveries reported in a new NASA-led study of the disintegrating glacier. The findings highlight the need for detailed observations of Antarctic glaciers’ undersides […]
The December 2018 close approach by the large, near-Earth asteroid 2003 SD220 has provided astronomers an outstanding opportunity to obtain detailed radar images of the surface and shape of the object and to improve the understanding of its orbit. The asteroid will fly safely past Earth on Saturday, Dec. 22, at a distance of about […]
“Floating debris” from the missing EgyptAir MS804 was reported to have been located by Greek authorities on Thursday near the island of Karpathos the Greek Foreign ministry announced. But, those earlier reports were inaccurate and reports say that the debris was not from the airliner. The ill-fated flight plunged from 37,000 feet to 15,000 feet before […]
WASHINGTON, D.C. – As the U.S. Senate Appropriations Committee conducts its annual reviews of federal agency spending and priorities, Senator Lisa Murkowski Wednesday used the appearance of Missile Defense Agency (MDA) Director Admiral James Syring on Capitol Hill to get clarity about Alaska’s pre-eminent role in the nation’s defense. At a hearing of the Senate […]
From research stations drifting on ice floes to high-tech aircraft radar, scientists have been tracking the depth of snow that accumulates on Arctic sea ice for almost a century. Now that people are more concerned than ever about what is happening at the poles, research led by the University of Washington and NASA confirms that […]
NASA scientists using Earth-based radar have produced sharp views of a recently discovered asteroid as it slid silently past our planet. Captured on June 8, 2014, the new views of the object designated “2014 HQ124” are some of the most detailed radar images of a near-Earth asteroid ever obtained. An animation of the rotating asteroid […]