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rachel crowell

Natural solutions could save $50 billion in Gulf Coast flood damages

As coastal development skyrockets and the effects of climate change escalate, flooding is becoming an increasingly common threat. A new statistical analysis of the costs and benefits of various coastal protection methods along the U.S. Gulf Coast suggests communities could prevent a significant amount of flood damage by implementing a combination of natural defenses and built infrastructure.

10 Aug 2018

Island-dwelling mammal had small brain, keen senses

A host of fossils has been discovered near the Romanian town of Haţeg, including 15 species of Late Cretaceous dinosaurs — some of them dwarf dinosaurs — and enormous pterosaurs with 12-meter wingspans, prompting the establishment of the Haţeg Country Dinosaurs Geopark in 2005.

26 Jul 2018

Diamonds reveal water in deep mantle

Inclusions in diamonds often render them undesirable to consumers, but they can provide researchers with striking insights into Earth’s composition. Recently, scientists probing diamond samples for the presence of carbon dioxide stumbled instead upon inclusions of ice-VII — a type of crystallized water that forms at very high pressures, and has never before been found in nature.

07 Jul 2018

Benchmarks: May 3, 2003: New Hampshire's Old Man of the Mountain falls

On May 2, 2003, the Old Man of the Mountain, New Hampshire’s famous face-shaped granite formation, adorned the side of Cannon Mountain in Franconia Notch State Park, just as it had for millennia. But by the next morning, it was gone: The iconic stone face had fallen.

03 May 2018

Benchmarks: April 4, 2011: Air France Flight 447 wreckage found using modern oceanography tools

In the early morning hours of March 8, 2014, Malaysia Airlines flight 370 (MH370), en route from Kuala Lumpur to Beijing, lost communication with air traffic control during the transition between Malaysian and Vietnamese air space. It then disappeared, along with all 239 people aboard.

04 Apr 2018

Spawning salmon engineer landscapes

All animals depend on their ecosystems for habitat. And, in turn, many animals impact their ecosystems by engineering the landscape to suit their needs. Beavers provide an iconic example of ecosystem engineering when they build dams, which influence streams and wetlands. The engineering efforts of salmon, meanwhile, can even shape the bedrock of the watersheds in which they live, according to a recent study that modeled the evolution of those watersheds over several million years.

23 Feb 2018

Two-faced space worm could inform regenerative medicine

It sounds like the plot of a science fiction movie: Worms sent into space return to Earth with two heads. But it isn’t fiction at all. In a recent study, researchers sent worms with regenerative capabilities — some left whole and some cut into pieces — to the International Space Station (ISS) to study how the worms’ bodies would respond in space and whether their behavior might help efforts to treat human ailments.

19 Oct 2017

Benchmarks: July 15-24, 1975: Apollo-Soyuz mission launches space collaboration

The space race between the United States and the Soviet Union spurred innovations and historic firsts for humankind from Sputnik to the moon landing. However, much of the drive to break through those technological barriers and explore the vast, starry landscape of space was rooted in a desire to display military dominance in space amid the competition and animosity of the Cold War.

15 Jul 2017

Convection formed Pluto's polygons

Among Pluto’s peculiar surface features, many of which were first seen just last year when NASA’s New Horizons spacecraft zipped by the dwarf planet, are polygon-shaped rises covering parts of a large equatorial basin known as Sputnik Planum. The basin is known to be filled mainly with ices of nitrogen, methane and carbon monoxide, but the origin of the polygons has been debated. In a pair of new studies published in Nature, two teams of researchers now attribute the distinctive shapes to convection within underlying layers of frozen nitrogen.

24 Oct 2016