Satellite data reveals bonds between emissions, pollution and economy

The city of Denver, Colorado, blanketed by smog. Credit: National Oceanic and Atmospheric Administration Burning fossil fuels has long powered world economies while contributing to air pollution and the buildup of greenhouse gases. A new analysis of nearly two decades of satellite data shows that economic development, fossil-fuel combustion and air quality are closely linked on […]

Charting Satellite Courses in a Crowded Thermosphere

Satellites play important roles in our daily lives, providing navigation, data, and communications solutions, as well as Earth observations to monitor weather, climate, and natural resources. All of this information is vital for policymakers, businesses, and consumers. However, increasing demand for the services that satellites provide has also created an increasingly crowded environment […]

US rivers are changing from blue to yellow and green, satellite images show

  A third of U.S. rivers have significantly changed color over the last 36 years, turning from blue to  yellow and green, striking new images reveal. Researchers analyzed 235,000 satellite images — taken over a 34-year period between 1984 and 2018 — from NASA and the U.S. Geological Survey (USGS) Landsat program. The changing hues […]

Spotting elephants from space: A satellite revolution

Raw image in homogenous area compared with CNN detections (green boxes) and ground truth labels (red boxes). Worldview-3 Satellite images Credit: Maxar Technologies Using the highest resolution satellite imagery currently available—Worldview 3—from Maxar Technologies and deep learning, (TensorFlow API, Google Brain) researchers at the University of Oxford Wildlife Conservation Research Unit and Machine Learning Research […]

SpaceX launches classified US spy satellite, sticks rocket landing to cap record year

CAPE CANAVERAL, Fla. — SpaceX launched a clandestine U.S. spy  satellite into space for the National Reconnaissance Office (NRO)  Saturday (Dec. 19) , marking its 26th rocket of the year. The mysterious payload, called NROL-108, lifted off from Pad 39A here at NASA’s Kennedy Space Center at  9 a.m. (1400 GMT) , during a planned […]

Satellite data identifies companies fishing in high seas

A team of researchers, using satellite data and other analytical tools, has identified companies fishing in high seas–waters that lie outside of national jurisdiction where fishing has raised fears about environmental and labor violations. The study, which appears in the journal One Earth, is the first to link companies to fishing activity in these largely […]

Satellite tag tracks activity levels of highly migratory species across the vast ocean

Cobia (Rachycentron canadum) equipped with ATS enabled PSAT during captive validation trials. Credit: Matt Bernanke–Sharktagging.com Scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and Wildlife Computers, Inc. today announced the release of a new activity data product application for marine animal tracking. The technology is designed to remotely track and transmit […]

Satellite images confirm uneven impact of climate change — ScienceDaily

University of Copenhagen researchers have been following vegetation trends across the planet’s driest areas using satellite imagery from recent decades. They have identified a troubling trend: Too little vegetation is sprouting up from rainwater in developing nations, whereas things are headed in the opposite direction in wealthier ones. As a result, the future could see […]

Satellite images confirm uneven impact of climate change

University of Copenhagen researchers have been following vegetation trends across the planet’s driest areas using satellite imagery from recent decades. They have identified a troubling trend: Too little vegetation is sprouting up from rainwater in developing nations, whereas things are headed in the opposite direction in wealthier ones. As a result, the future could see […]