New Satellite's Lasers Will Track Tiny Changes in Polar Ice

New Satellite's Lasers Will Track Tiny Changes in Polar Ice

Once it settles into orbit 310 miles above the Earth, the satellite will start collecting data using a specially designed laser device that will give scientists more data about exactly where ice is melting and how fast.The NASA satellite will scan the Earth’s surface using six green laser beams to measure glaciers and floating sea ice.

New Space Robots Will Fix Satellites, or Maybe Destroy Them

New Space Robots Will Fix Satellites, or Maybe Destroy Them

Because the technology now exists to build these satellite hackers, we're stuck in a quandary: If your enemy can launch such orbiters, and you don't match them, you run the risk of having your space infrastructure quietly slaughtered.NASA's peaceful program for satellites with these servicing capabilities is called Restore-L.

The 19th Century Argument for a 21st Century Space Force

The 19th Century Argument for a 21st Century Space Force

Security experts warn that Russia and China are both catching up and developing anti-satellite weapons capable of tripping up America’s strategic orbital foothold.The fourth thing to know about space power is, if America gives up its military dominance, expect its economic influence to wane as well.

Climate change warning: Sea levels rising even FASTER as ice caps melt

Climate change warning: Sea levels rising even FASTER as ice caps melt

GETTYA two metre jump could see a host of major cities be partially submergedCo-author John Fasullo, a climate scientist at the National Center for Atmospheric Research, said: "This study highlights the important role that can be played by satellite records in validating climate model projections.”If the calculations are correct, it would mean that sea levels could rise by almost one metre by 2100, which would be devastating for island countries around the globe.

The Arctic's Most Stable, Solid Patch of Ice Is Melting

The Arctic's Most Stable, Solid Patch of Ice Is Melting

A NASA satellite image shows where the ice has pulled away from Greenland's north coast, a phenomenon that's never been recorded before.

Seeing hidden worlds under melting ice – Climate Change: Vital Signs of the Planet

Seeing hidden worlds under melting ice – Climate Change: Vital Signs of the Planet

OMG is a multi-pronged effort to map the underwater contours of the Greenland coast, and better understand how warming ocean waters drive melting ice. A giant leap forward came late in 2017, when NASA, the University of California, Irvine and others published high resolution maps of the bedrock and sea floor around Greenland.

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Hundreds of people at NASA's Goddard Space Flight Center in Greenbelt, Maryland, worked to build this smart-car-sized instrument to exacting requirements so that scientists can measure minute changes in our planet’s ice.

How Engineering the Climate Could Mess With Our Food

How Engineering the Climate Could Mess With Our Food

Bad news is, the solar shading that would come with geoengineering would negatively affect crops, likely wiping out the gains from lower temperatures.“If we imagine geoengineering as an experimental surgery, our findings suggest that the damages or side effects from the surgery are just as bad as the original disease,” says UC Berkeley agricultural economist Jonathan Proctor, lead author of the new study.A funny thing happens to light when it hits a volcano’s sulfate aerosols in the air.