New orbiter data support an important role for seasonal frost—not liquid water—in the formation of Martian gullies.
satellite imagery
Posted inResearch Spotlights
Insights into Long-Standing Bias in Cloud Property Retrieval
A new framework provides a more comprehensive view of how subpixel variations can create biases in a commonly used method of analyzing cloud properties with satellites.
Posted inNews
Faster-Merging Snow Crystals Speed Greenland Ice Sheet Melting
Satellite data and modeling reveal a trend toward coarser-grained, more-light-absorbent snow.
Posted inNews
New Spin on Pluto's Moons
Strangely speedy rotation rates of Pluto's tiny orbiting companions show up in a trove of images taken as the New Horizons spacecraft approached the dwarf planet last spring and early summer.
Posted inOpinions
Data for All: Using Satellite Observations for Social Good
The satellite and science communities must engage with stakeholders to identify priorities and capabilities, enabling the most beneficial use of abundant satellite sensing data.
Posted inNews
Pluto Image Shows First Picture of Its Atmosphere
Scientists are amazed by new images that show Pluto's atmosphere and diverse geology.
Posted inNews
Pluto's Moons Nix and Hydra Show Their Faces
When the New Horizons spacecraft photographed Pluto last week, it snapped the most revealing images yet of two little-known moons of the dwarf planet.
Posted inNews
New Pluto Image Reveals Young Icy Plain
The mottled plain offers additional evidence that Pluto's surface is geologically young—and possibly still active.
Posted inNews
"Amazing" Activity Evident on Pluto's Surface
Scientists struggle to explain perplexing features revealed by the first close-up of the icy body's surface.
Posted inResearch Spotlights
Southwest’s Four Corners Home to Largest U.S. Methane Signal
Satellite data reveal fossil fuel harvesting operations in the Southwest's Four Corners are generating the country's largest methane signal viewable from space.