Astronomers using NASA's Hubble Space Telescope have determined the orbital motion of two distinct populations of stars in an ancient globular star cluster, offering proof they formed at different times and providing a rare look back into the Milky Way galaxy's early days.
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As a class, people who don't drink at all have a higher mortality risk than light drinkers. But nondrinkers are a diverse bunch, and the reasons people have for abstaining affects their individual mortality risk, in some cases lowering it on par with the risk for light drinkers, according to a University of Colorado study.
ANN ARBOR—Like the elevation in the Rocky Mountains where the snow caps begin, a snow line in a solar system is the point where falling temperatures freeze and clump together water or other chemical compounds that would otherwise be vapor. Astronomers believe snow lines in space serve a vital role in forming planets because frozen moisture can help dust grains stick together.
Astronomers using the new Atacama Large Millimeter/submillimeter Array (ALMA) telescope have taken the first-ever image of a snow line in an infant solar system. This frosty landmark is thought to play an essential role in the formation and chemical make-up of planets around a young star.
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA - http://www.eso.org/alma) have taken the first ever image of the snow line in an infant solar system. On Earth, snow lines form at high altitudes where falling temperatures turn the moisture in the air into snow. This line is clearly visible on a mountain, where the snow-capped summit ends and the rocky face begins.
ANN ARBOR—New findings from NASA's Curiosity rover provide clues to how Mars lost its original atmosphere, which scientists believe was much thicker than the one left today.
"The beauty of these measurements lies in the fact that these are the first really high-precision measurements of the composition of Mars' atmosphere," said Sushil Atreya, professor of atmospheric, oceanic and space sciences at the University of Michigan.
Looking at the extent of a tropical cyclone's clouds from space doesn't tell you all you need to know about a storm, so satellites use infrared, microwave and multi-spectral imagery to look "under the hood." Two NASA satellites provided an outside and inside look at Tropical Storm Cimaron as it was starting to make landfall in China.
UBC astronomers have used NASA's Hubble Space Telescope to track the orbital motion of 33,000 stars in one of the Galaxy's oldest globular clusters, offering new insights into the formation of the Milky Way.
The careful examination of 'cosmic choreography' enabled researchers, for the first time, to link the movement of stars within the cluster to the stars' ages. The study reveals two distinct generations of stars within globular cluster 47 Tucanae, 16,700 light-years from Earth.
AKRON, Ohio, (July 18, 2013) – GOJO Industries, a leader in hand hygiene and skin health and inventors of PURELL® Hand Sanitizer, conducted an independent research study at the John Peter Smith Hospital in Fort Worth, Texas to determine the impact on hand hygiene compliance rates when the hospital hand hygiene program included an electronic compliance activity monitoring system. The compliance technology system used in the study was the GOJO SMARTLINK Activity Monitoring System.
Washington, DC—A study published in the July 17, issue of the journal PLOS ONE found that more than 80% of tropical forests in Malaysian Borneo have been heavily impacted by logging.
A novel material with world record breaking surface area and water adsorption abilities has been synthesized by researchers from Uppsala University, Sweden. The results are published today in PLOS ONE.
A NASA engineer has achieved yet another milestone in his quest to advance an emerging super-black nanotechnology that promises to make spacecraft instruments more sensitive without enlarging their size.
We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part because it's also rare in the universe. Unlike elements like carbon or iron, it cannot be created within a star. Instead, it must be born in a more cataclysmic event - like one that occurred last month known as a short gamma-ray burst (GRB).
Inciweb.org reports, "The Mountain Fire started at 1:43 PM on July 15, 2013 near the junction of Highway 243 and Highway 74. It is currently burning east of the Mountain Center and Apple Canyon Areas. It is burning in very steep and rugged terrain in the southern portion of the San Jacinto Wilderness along the Desert Divide and in the Apple Canyon and Bonita Vista Areas. Some residences and commercial buildings have been destroyed by the fire, though firefighters were able to defend and save a larger number of homes.
Tropical Depression 08W strengthened into a tropical storm and was renamed Cimaron by the morning of July 17. NASA's Aqua satellite captured the storm is it passed between the northern Philippines and Taiwan.