Heavens

NASA catches 3 days of Typhoon Hagupit's motion over Philippines

NASA's Terra and Aqua satellites flew over Typhoon Hagupit from Dec. 6 through Dec. 8 and the MODIS instrument that flies aboard both satellites provided images of the storm as it moved through the country.

The Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite caught a picture of Hagupit on Dec. 6 before it made landfall. On Dec. 7, the MODIS instrument aboard NASA's Terra satellite took an image of the storm as it was making landfall in the eastern Philippines.

NASA catches three days of Typhoon Hagupit's motion over Philippines

NASA's Terra and Aqua satellites flew over Typhoon Hagupit from Dec. 6 through Dec. 8 and the MODIS instrument that flies aboard both satellites provided images of the storm as it moved through the country.

The Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite caught a picture of Hagupit on Dec. 6 before it made landfall. On Dec. 7, the MODIS instrument aboard NASA's Terra satellite took an image of the storm as it was making landfall in the eastern Philippines.

A pill for obesity?

Harvard Stem Cell Institute researchers at Harvard and Massachusetts General Hospital have taken what they are describing as "the first step toward a pill that can replace the treadmill" for the control of obesity - though it of course would not provide all the additional benefits of exercise.

University of Tennessee research offers explanation for Titan dune puzzle

Titan, Saturn's largest moon, is a peculiar place. Unlike any other moon, it has a dense atmosphere. It has rivers and lakes made up of components of natural gas, such as ethane and methane. It also has windswept dunes that are hundreds of yards high, more than a mile wide and hundreds of miles long--despite data suggesting the body to have only light breezes.

Machine harvesting may increase apple supply for hard cider market

MOUNT VERNON, WA - Cider - or "hard cider" as it is typically known in the United States - is experiencing a real revival. The fermented apple juice with 0.5% to 7% alcohol-by-volume is the fastest growing alcohol market segment in the US, boasting a 54% increase in production annually from 2007 to 2012. Naturally, increasing consumer demand for cider translates to a need for more apples to make quality cider products.

Cell division induces tissue ordering

Nature's ingenious systems: A layer of cells called endothelial cells lines the interior of blood vessels. When blood flows through the vessels, such cells only divide to replace dead cells. However, if there is a blood clot preventing blood from flowing across the endothelial cells, they begin to divide more actively. New research from the Niels Bohr Institute demonstrates that cell division is very ordered. The new cells move away from each other and create a dynamic movement with eddies in a large area. This presumably helps to widen the vessel around the blockage.

Nature's timekeepers: Finding a pulsar with a black hole could be the 'holy grail' of gravity

The intermittent light emitted by pulsars, the most precise timekeepers in the universe, allows scientists to verify Einstein's theory of relativity, especially when these objects are paired up with another neutron star or white dwarf that interferes with their gravity. However, this theory could be analyzed much more effectively if a pulsar with a black hole were found, except in two particular cases, according to researchers from Spain and India.

HURL and NOAA team discover intact 'ghost ship' off Hawai'i

Researchers from the University of Hawai'i (UH) and NOAA's Office of National Marine Sanctuaries today announced the discovery of an intact "ghost ship" in 2,000 feet of water nearly 20 miles off the coast of Oahu. Sitting upright, its solitary mast still standing and the ship's wheel still in place, the hulk of the former cable ship Dickenson, later the USS Kailua, was found on the seabed last year on a maritime heritage submersible mission with the UH Hawai'i Undersea Research Laboratory's (HURL) Terry Kerby and Drs.

NASA analyzes Super Typhoon Hagupit's rains and wind on Philippine approach

Super Typhoon Hagupit is forecast to make landfall in the eastern Philippines bringing heavy rainfall, damaging winds and storm surge. NASA/JAXA's TRMM satellite and the RapidScat instrument provided rainfall and wind data, while NASA-NOAA's Suomi NPP satellite provided a visible image of the storm. In the Philippines, Hagupit is known locally as "Typhoon Ruby."

Ultrafast complex molecular simulations by 'cutting up molecules'

Nagoya, Japan - Professor Stephan Irle and Yoshio Nishimoto at the Institute of Transformative Bio-Molecules (ITbM) of Nagoya University and Dr. Dmitri Fedorov of the National Institute of Advanced Industrial Science and Technology (AIST, Tsukuba) have developed a novel ultrafast quantum chemical method enabling rapid simulations of molecules containing more than a million atoms without detrimental loss in accuracy.

NIST study 'makes the case' for RFID forensic evidence management

Radio frequency identification (RFID) tags--devices that can transmit data over short distances to identify objects, animals or people--have become increasingly popular for tracking everything from automobiles being manufactured on an assembly line to zoo animals in transit to their new homes. Now, thanks to a new NIST report, the next beneficiaries of RFID technology may soon be law enforcement agencies responsible for the management of forensic evidence.

Sun emits a mid-level flare on Dec. 4, 2014

On Dec. 4, 2014, the sun emitted a mid-level solar flare, peaking at 1:25 p.m. EST. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.

NASA observes Super Typhoon Hagupit; Philippines under warnings

Forecasters at the Joint Typhoon Warning Center expect Super Typhoon Hagupit to reach peak intensity today, Dec. 4, and although expected to weaken, will remain a Category 4 typhoon when it approaches the east central Philippines. NASA's Terra satellite and NASA/JAXA's GPM and TRMM satellites have been providing forecasters with valuable data on the storm. Computer models have varied on their track for the storm based on the strength of an upper-level system, so satellite data is extremely valuable in helping determine where Hagupit will move.

Greenhouse gases linked to past African rainfall

BOULDER - New research demonstrates for the first time that an increase in greenhouse gas concentrations thousands of years ago was a key factor in causing substantially more rainfall in two major regions of Africa. The finding provides new evidence that the current increase in greenhouse gases will have an important impact on Africa's future climate.

The study, led by the National Center for Atmospheric Research (NCAR), is being published this week in Science.

Rice could make cholera treatment more effective

Cholera is caused when the bacterium Vibrio cholerae infects the small intestine, resulting in severe diarrhea and vomiting, which can result in dehydration and death. The main treatment involves oral rehydration therapy, where the patient drinks water mixed with salts and glucose. But although proven to be enormously effective, there are concerns that the glucose content might actually worsen the disease.