Knowledge of soil moisture is important for applications such as weather forecasting, crop monitoring, and flood prediction. For a global picture of this key parameter, NASA is launching the Soil Moisture Active Passive (SMAP) satellite. Read more
Giant kelp forests are among Earth’s most productive habitats, but they are ephemeral. Researchers are using Landsat and a host of online friends to figure out where the forests are growing and declining. Read more
In October and November 2014, NASA's Operation IceBridge will fly its sixth Antarctic field campaign. This year’s campaign returns to Chile, giving researchers a view of how land and sea ice has changed in the past two years around West Antarctica and the Antarctic Peninsula. Read more
Earth’s temperature depends on how much sunlight the land, oceans, and atmosphere absorb, and how much heat the planet radiates back to space. This fact sheet describes the net flow of energy through different parts of the Earth system, and explains how the planetary energy budget stays in balance. Read more
Satellite images showing how our world— forests, oceans,
cities, even the Sun— has changed in recent decades.
The night side of Earth twinkles with light in these composite global and regional views.