NASA's Phoenix Mars Lander has detected snow falling from Martian clouds. Spacecraft soil experiments also have provided evidence of past interaction between minerals and liquid water, processes that occur on Earth.
NASA data are showing that for a four-week period in August 2008, sea ice melted faster during that period than ever before.
By July 2008, what had once been a massive ice fringe along the northern Ellesmere coast had been reduced to five isolated ice shelves.
A mechanical design engineer travels to the South Pole to help retrieve a science experiment.
SnoMotes are the first prototype network of their kind envisioned to rove treacherous areas of the Arctic and Antarctic.
Researchers plan to record changes in the Siberian forest as they navigate down the river in boats. Their goal is to get insight into global climate change.
New observations from NASA's Mars Reconnaissance Orbiter indicate that the crust and upper mantle of Mars are stiffer and colder than previously thought.
IPY Materials for Teachers
View pictures and video captured by NASA's Phoenix Mars Lander, which touched down on the Red Planet on May 25, 2008.
Quick access to IPY multimedia.
NASA's polar perspective.
The NASA IPY promo video.
Earth's frozen assets.
Multimedia and more ...