Volcanic Ash Blankets Kamchatka Snow

Volcanic Ash Blankets Kamchatka Snow

This astronaut photo reveals the Karymsky stratovolcaono less than two hours after it erupted on Nov. 9, 2012. Karymsky is the most active of Kamchatka's eastern volcanoes, a region where, on a geologic time scale, volcanism has occurred constantly since at least the late 18th century.

LiDAR Maps Reveal Coastal Vulnerability

LiDAR Maps Reveal Coastal Vulnerability

The extent of Hurricane Sandy’s wrath and the future coastal vulnerability of the region is clear in a new U.S. Geological Survey analysis of recently collected LiDAR coastal data.

Integrating Earth Observation Data

Integrating Earth Observation Data

The Earth Observation-Land Data Assimilation Scheme aims to assimilate satellite observations directly instead of from satellite-derived products.

Drone Assists Responders to Train Derailment

Drone Assists Responders to Train Derailment

A Scout unmanned aircraft system proved to be an invaluable asset to public safety agencies after a train derailment in Louisville, Ky., on Oct. 29, 2012, and subsequent chemical fire on Oct. 31.

Don't Be Fooled”The Real India at Night

Don't Be Fooled”The Real India at Night

Each fall, Hindus around the world light lamps, candles and firecrackers for the festival known as Diwali. A colorful satellite image of India that claims to show the region lit for Diwali has been circulating on the Internet, but it's not authentic. This image, collected by the Suomi NPP satellite, is the real deal.

Improving the ESA Gravity Mission

Improving the ESA Gravity Mission

The European Space Agency's GOCE gravity satellite already has delivered the most accurate gravity map of Earth. Now its orbit is being lowered to obtain even better results.

Tracking Kilimanjaro's Shrinking Ice

Tracking Kilimanjaro's Shrinking Ice

Cold, dry air at the top of Mount Kilimanjaro has sustained large ice fields for more than 10,000 years, but trends beginning more than a century ago suggest its peaks soon may be ice-free.