× This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. Before widespread human settlement began to encroach on the ...

Today marks day 12 of the AVUELO campaign, and what a whirlwind it has been! It feels like just yesterday we were kicking things off, but with so many moving parts, time has flown by. Between the ...

Today marks day 12 of the AVUELO campaign, and what a whirlwind it has been! It feels like just yesterday we were kicking things off, but with so many moving parts, time has flown by. Between the ...

AVUELO has encountered one of the wettest and cloudiest dry seasons in memory. After a series of great acquisitions over core and important areas, our airborne science has stood down for several days ...

NASA Earth Observatory readers may recognize this image of a long trail of clouds — an atmospheric river — reaching across the Pacific Ocean toward California. It appeared first as an Image of the Day ...

Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or ...

SMAP is ready to go! The Soil Moisture Active Passive (SMAP) mission, which will map the water content of soils worldwide, passed its “launch readiness review” on January 27. There is also a favorable ...

On May 5, 2012, I was attending a conference at ICIMOD (the Kathmandu-based International Centre for Integrated Mountain Development). I heard about the terrifying disaster that day. A flash ...

The Sun provides the energy that drives Earth’s climate, but not all of the energy that reaches the top of the atmosphere finds its way to the surface. That’s because aerosols—and clouds seeded by ...