News tagged with satellite imaging

Invention allows clear photos in dim light

Cameras fitted with a new revolutionary sensor will soon be able to take clear and sharp photos in dim conditions, thanks to a new image sensor invented at Nanyang Technological University (NTU).

May 30, 2013
4.8 / 5 (19) 3

Evidence for a Martian Ocean

(Phys.org) —Researchers at the California Institute of Technology (Caltech) have discovered evidence for an ancient delta on Mars where a river might once have emptied into a vast ocean.

Jul 17, 2013
4.8 / 5 (13) 7 | with audio podcast

Glaciers in the grand canyon of Mars?

For decades, planetary geologists have speculated that glaciers might once have crept through Valles Marineris, the 2000-mile-long chasm that constitutes the Grand Canyon of Mars. Using satellite images, ...

Sep 30, 2014
4.7 / 5 (6) 0

Early warning signs of population collapse

Many factors—including climate change, overfishing or loss of food supply—can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, ...

Apr 10, 2013
3.8 / 5 (6) 0 | with audio podcast

Earth's northern biomass mapped and measured

The biomass of the northern hemisphere's forests has been mapped with greater precision than ever before thanks to satellites, improving our understanding of the carbon cycle and our prediction of Earth's ...

Jun 27, 2013
5 / 5 (4) 0