Add BrightSurf on Google Email

U.S. National Science Foundation


Big dinosaurs steered clear of the tropics

Scientists have discovered that dinosaurs remained rare near the equator during the late Triassic period due to extreme climate fluctuations and wildfires that fueled hotter fires. The study revealed a pattern of rapid vegetation changes related to climate shifts, which led to droughts and plant die-offs.

SourceU.S. National Science Foundation·JournalProceedings of the National Academy of Sciences·DateJun 15, 2015

Researchers improve efficiency of human walking

A new unpowered ankle exoskeleton developed by Carnegie Mellon and North Carolina State researchers reduces the metabolic cost of walking by approximately 7%, equivalent to taking off a 10-pound backpack. The device uses a mechanical clutch to offload energy-consuming calf muscle forces, allowing individuals with mobility issues to wal...

NSF@AAAS

NSF staff and scientists present findings on gender in STEM policy, practice and research, as well as graduate science education and broader impacts of research. The session includes discussions on reducing the gender gap, innovative pathways to science careers and strategies for effective broader impacts work.

Ocean acidification a culprit in commercial shellfish hatcheries' failures

A new study found that Pacific oyster and Mediterranean mussel larvae are sensitive to the saturation state of seawater, which is lowered by increasing CO2 levels. The threshold for danger will be crossed decades to centuries ahead of when CO2 increases alone would pose a threat. Shellfish hatcheries alter water chemistry to create mor...

SourceU.S. National Science Foundation·JournalNature Climate Change·DateDec 16, 2014

Ebola rapid response

The National Science Foundation has awarded rapid response grants to support researchers in understanding the fundamental nature of Ebola and its impact on public safety. The grants will fund projects that explore new methods for virus detection, disinfection, and medical response, as well as research into risk assessment and behavior.

Where did the Deepwater Horizon oil go? To Davy Jones' Locker at the bottom of the sea

Researchers have discovered the path the remaining 2 million barrels of oil from the 2010 Deepwater Horizon disaster followed to its resting place on the Gulf of Mexico sea floor. The study found that the oil is concentrated in a thin layer at the sea floor, with deposits most extensive to the southwest of the Macondo Well.

SourceU.S. National Science Foundation·JournalProceedings of the National Academy of Sciences·DateOct 27, 2014

From the mouths of ... young fireballs

Astronomers observed unprecedented nova images that show the expanding thermonuclear fireball is more complicated than predicted. The research collaboration measured the nova on 27 nights over two months using CHARA's high-resolution telescopes, revealing an ellipticity of 13% and a rapid expansion rate of over 600 km/s.

Cause of California drought linked to climate change

A study by researchers links California's ongoing drought to human-caused climate change, showing a persistent region of high atmospheric pressure over the Pacific Ocean is more likely to form in modern greenhouse gas concentrations. The extreme conditions led to unusually low precipitation and triggered wildfires and air pollution.

SourceU.S. National Science Foundation·JournalBulletin of the American Meteorological Society·DateSep 29, 2014