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Researchers haul a sensor from McMurdo Sound.
Broken and snapped-off trees at a tornado impact area in Southbridge, Mass., in 2011.
Sassafras comes to life after significant storm damage.
Nine years into the Harvard Forest hurricane re-creation experiment, trees were everywhere.
Harvard Forest ecologists monitor downed wood in the hurricane re-creation experiment.
In 1990, this part of NSF's Harvard Forest LTER site was a jumble of downed trees.
One Fellow's research examines metal-rich acid mine drainage from a mine near Lake Fork Creek, Colo.
Scientists Erik Yando and Clara Chaisson measure marsh that has slumped into a creek.
The mouth of the Parker River is a major channel through Plum Island's salt marshes.
Tidal channels in salt marsh, or Spartina, grass. What is their capacity for carrying nutrients?
Where are all the salt marshes going? Excess nutrients may be to blame for their decline.
Salt marshes and tidal creeks abound at Plum Island, Mass., and along the Atlantic coast.
Plum Island Ecosystems, PIE at right on map, is one of 26 NSF Long-Term Ecological Research sites.
DMREF is intended to dramatically speed up the development and application of new materials.
Video type: Brightcove Video Cloud
NSF/UAF unveil the R/V Sikuliaq.
The R/V Sikuliaq will be uniquely equipped for operating in ice-covered Arctic waters.
The R/V Sikuliaq will be operated for NSF by the University of Alaska, Fairbanks.
One of the stations at the visitor center will include activities for "young scientists."
The NCAR-Wyoming Supercomputing Center will include a visitor center.
The Washington National Cathedral's spires began to crumble in the 2011 quake.
The Pentagon was also affected by the 2011 Virginia earthquake.
In the August, 2011, Virginia quake, those as far away as New York's Wall Street were affected.
The August, 2011, quake damaged buildings in Washington, D.C., such as the Embassy of Ecuador.
A magnitude 5.8 quake hit central Virginia in August, 2011; when will another strike?
Drop, Cover and Hold On! Great ShakeOut participants will learn what to do in a quake.