Landsat satellite tracks down recovery of Mount St. Helens

Picturesque scene at Mount Saint Helens

Looking back at the Mount St. Helens eruption

50 years of crucial images from NASA's Landsat satellite

Looking back at the Mt. St. Helens eruption

Ghost tracks uncovered by storms

Bernie Rayno tracks a tropical threat

How NORAD tracks Santa on Christmas Eve

How AccuWeather tracks the movement of the blanket of smoke

Reed Timmer tracks a tornado southwest of McLean, Texas

Dr Reed Timmer tracks storm damage in Louisiana

NOAA tracks 'urban heat islands' to help cities find effective cooling solutions

New tool tracks bed availability at shelters in Kansas City

Intense hurricane winds hold up storm chaser's body as he tracks Irma

Reed Timmer tracks rising floodwaters at Styx River

Reed Timmer tracks developing storm outside Kit Carson, Colorado

How satellites track drastic changes happening to our planet

Virginia Norwood, la "mère de Landsat", est décédée

El Landsat "ve en la oscuridad" la evolución del iceberg gigante desprendido de la Antártida

Tornadoes and severe storms rip through the Great Lakes region

Severe weather sweeps through the Midwest

Tornadoes touch down in Michigan after destructive storms throughout the central US

Two tornado-warned storms in a row tear through Michigan town

Severe storm threat shifts to the Southeast

Walkthrough shows destruction left behind by tornado in Michigan