NASA's Newest Map of the World
November 18, 2009
Why did it take nearly three decades for scientists to create the first global portraits of Earth from NASA's Landsat missions?
World of Change: El Niño, La Niña, and Rainfall
October 23, 2009
For many people, El Niño and La Niña mean floods or drought, but the events are actually a warming or cooling of the eastern Pacific Ocean that impacts rainfall. These sea surface temperature and rainfall anomaly images show the direct correlation between ocean temperatures and rainfall during El Niño and La Niña events.
Science for a Hungry World Podcasts
September 23, 2009
NASA satellite remote sensing data provide the world with essential information that enables government organizations to feed the hungry, policymakers to make informed decisions, and aid organizations to provide relief.
Satellites measurements of ice sheet elevation reveal a complex network of subglacial lakes in Antarctica. As water flows from lake to lake, the ice sheet above them rises and falls.
NASA satellite data of regional haze allow EPA scientists to expand their focus from local to regional air quality monitoring and forecasting.
Using satellite data and museum specimen records, scientists predicted the location of 7 new chameleon species in Madagascar.
Astronauts onboard the International Space Station capture nighttime photographs of city lights, spectacular evidence of humanity's existence, our distribution, and our ability to change our environment.
Remotely sensed Earth observations can include everything from sonar measurements used to map the topography of the ocean floor to satellite-based observations of city lights. Combining observations collected by a variety of instruments at different times and places allow scientists to create an otherwise impossible view of the Earth, showing underwater mountain ranges, cloud-free skies, and city lights that are brighter than daylight. Such visualizations are invaluable for interpreting complex data and communicating scientific concepts.