Spending just one week exposed only to natural light while camping in the Rocky Mountains was enough to synch the circadian clocks of eight people participating in a University of Colorado Boulder study with the timing of sunrise and sunset.
The study, published online today in the journal Current Biology, found that the synchronization happened in that short period of time for all participants, regardless of whether they were early birds or night owls during their normal lives.
Some galaxies hit a point in their lives when their star formation is snuffed out, and they become "quenched". Quenched galaxies in the distant past appear to be much smaller than the quenched galaxies in the Universe today. This has always puzzled astronomers -- how can these galaxies grow if they are no longer forming stars? A team of astronomers has now used a huge set of Hubble observations to give a surprisingly simple answer to this long-standing cosmic riddle.
Until now, these small, snuffed-out galaxies were thought to grow into the larger quenched galaxies we see nearby.
Tropical Depression Flossie fizzled fast on July 30 in the Central Pacific Ocean. Satellite imagery on July 31 showed remnant clouds northwest of the Hawaiian Island chain.
Principal Investigator George Ricker likes to call it the "Goldilocks orbit" — it's not too close to Earth and her Moon, and it's not too far. In fact, it's just right.
Traveling to remote locations sometimes involves navigating through stop-and-go traffic, traversing long stretches of highway and maneuvering sharp turns and steep hills. The same can be said for guiding spacecraft to far-flung destinations in space. It isn't always a straight shot.
A NASA technologist has developed a fully automated tool that gives mission planners a preliminary set of detailed directions for efficiently steering a spacecraft to hard-to-reach interplanetary destinations, such as Mercury, Jupiter, Saturn, and most comets and asteroids.
No sooner had Tropical Storm Flossie dissipated then another tropical cyclone called Tropical Depression 7E formed yesterday, July 30, in the eastern Pacific Ocean. NASA's TRMM satellite saw "hot towers" in the storm's center early on July 31, that indicated it would likely strengthen, and it became Tropical Storm Gil hours later.
HONOLULU – About one in three American youths age 14-20 say they've been of victims of dating violence and almost one in three acknowledge they've committed violence toward a date, according to new research presented at the American Psychological Association's 121st Annual Convention.
"These rates of adolescent dating violence are alarming and suggest that dating violence is simply too common among our youth," said Michele Ybarra, PhD, MPH, with the Center for Innovative Public Health Research, based in San Clemente, Calif.
ARLINGTON, Va.—Scientists recently launched unmanned aerial vehicles (UAVs) from a research vessel in a significant experiment that could help boost the Navy's radar and communications performance at sea.
Sailing off Virginia Beach, Va., from July 13 to 18, the Office of Naval Research's (ONR) Research Vessel (R/V) Knorr explored ocean and atmospheric weather variations that can change the angle that radar and radio waves bend, making it more difficult for ships to remain undetected and hindering their ability to communicate or locate adversaries.
In 1924, Science magazine reported on a fatal case of potato poisoning: James B. Matheney of Vandalia, Illinois, had gathered about one and a half bushels of tubers, which had turned green due to sunlight exposure. Two days after eating the potatoes, most of his family -- wife, two daughters and four sons -- showed symptoms of poisoning; the only exceptions were James himself, who didn't eat the potatoes, and a breast-fed baby boy. His wife, aged 45, died a week later, followed by their 16-year-old daughter. The other five members of the family recovered.
AUSTIN, Texas — This summer, a radio navigation research team from The University of Texas at Austin set out to discover whether they could subtly coerce a 213-foot yacht off its course, using a custom-made GPS device.
Slight changes in the timing of the annual loss of sea-ice in polar regions could have dire consequences for ecosystems, by allowing a lot more sunlight to reach the sea floor, a study from UNSW and the Australian Antarctic Division shows.
The research predicts that biodiversity on some areas of the polar seabed could be reduced by as much as one third within decades, as the poles warm.
Don't hire someone to wash your dirty solar panels. That's the conclusion of a study recently conducted by a team of engineers at the University of California, San Diego. Their findings were published in the July 25 online issue of Solar Energy.
Tropical Storm Flossie weakened as it interacted with the Hawaiian Islands and became a depression. NASA's TRMM satellite saw mostly light rain and one isolated area of heavy rainfall within the storm after it weakened. All watches and warnings were dropped for the Hawaiian Islands on July 30.
Former Tropical Storm Dorian has been hanging around the Caribbean Sea for a couple of days, and appears stretched out on satellite imagery.
Tropical Depression 7E formed in the Eastern Pacific Ocean during the morning of July 30, and a NASA satellite was overhead to get an infrared baby picture. NASA's Aqua satellite passed over the depression and saw strong, but fragmented thunderstorms around the center.
The Atmospheric Infrared Sounder or AIRS instrument flies aboard NASA's Aqua satellite. AIRS creates infrared data that helps determine temperature, such as cloud top and sea surface temperatures.