Since its launch on the web in April 1999, NASA Earth Observatory has published more than 15,500 image-driven stories about our planet. In celebration of our 20th anniversary — as well as the 50th ...

The last time I saw the small promontory off Herradura Bay in the Gulf of Nicoya, it was 31 years ago aboard the German research vessel Victor Hensen, named after the pioneer 19th-century German ...

Photo courtesy of FECOP. The last time I saw the small promontory off Herradura Bay in the Gulf of Nicoya, it was 31 years ago aboard the German research vessel Victor Hensen, named after the pioneer ...

I’m standing in an isolated clearing at Vandenberg Air Force Base in California on February 11, 2013, holding an enormous weather balloon. Just as I’m about to let it go, it’s tugging on my arm with ...

The average temperature in winter ranges from -40°C (-40°F) to 20°C (68°F). The average summer temperatures are usually around 10°C (50°F). The coniferous forest is sandwiched in between the tundra to ...

Watercolor of campsite by Nina Slagter, youth employee, Northern Youth Leadership. In October 2023, Nancy French and Dana Redhuis of Michigan Tech Research Institute (MTRI) attended a conference to ...

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 ...

It’s really hard to believe, but I will already be departing Panama tomorrow. When I arrived a week ago, on February 5, I had a hunch but didn’t fully appreciate just how busy our AVUELO ground and ...

To research the wintry tundra near Denali National Park, scientists often turn to a four-legged mode of transport to reach their field — sled dogs. At Eight Mile Lake, just outside the Park boundaries ...