Washington D.C. [USA], April 29 : Two NASA satellites have provided forecasters in Australia with visible and rainfall data as tropical cyclone 'Frances' strengthened in the western Timor Sea.
NASA's Aqua satellite has captured a visible image of the storm that showed a cloud-filled eye, while the Global Precipitation Measurement Mission or GPM core satellite found heaving rainfall occurring.
Frances formed north of Melville Island, Australia on April 27, 2017.
Frances has been gradually intensifying while moving south-southwestward through the Timor Sea.
Frances had maximum sustained winds estimated at 50 knots (57.5 mph) when the GPM core Observatory flew over on April 27, 2017 at 1936 UTC.
Washington D.C. [USA], Apr 25 : In the past, scientists typically avoided linking individual weather events to climate change, citing the challenges of teasing apart human influence from the natural variability of the weather. But that is changing.
"Over the past decade, there's been an explosion of research, to the point that we are seeing results released within a few weeks of a major event," said Diffenbaugh, who is also the Kimmelman Family Senior Fellow at the Stanford Woods Institute for the Environment.
In a new study, published in Proceedings of the National Academy of Sciences, Diffenbaugh and a group of current and former Stanford colleagues outline a four-step "framework" for testing whether global warming has contributed to record-setting weather events.
Washington D.C. [USA], Apr. 11 : Tropical Cyclone Cook formed in the Southern Pacific Ocean and on Sunday, April 9, 2017 and moved across the island of New Caledonia in the South Pacific Ocean on early on April 10. NASA-NOAA's Suomi NPP Satellite passed over Cook as it was making landfall.
The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard NASA-NOAA's Suomi NPP satellite provided a visible image of Cook on April 10 at 0254 UTC (April 9 at 10:54 p.m. EST). That was about one hour before the storm's center made landfall in central New Caledonia. The image showed a cloud-filled eye surrounded by powerful thunderstorms. A large band of thunderstorms feeding into the center blanketed the islands of Vanuatu.
Washington D.C. [USA], Apr. 10 : A new study of Peruvian frogs living at a wide variety of elevations -- from the Amazon floodplain to high Andes peaks -- lends support to the idea that lowland amphibians are at higher risk from future climate warming.
That's because the lowland creatures already live near the maximum temperatures they can tolerate, while high-elevation amphibians might be more buffered from increased temperatures, according to a study by University of Michigan ecologist Rudolf von May and his colleagues published online April 6 in the journal Ecology and Evolution.
Washington D.C [USA], Apr. 8 : Walking down a grassy field, have you ever wondered that what lies beneath the surface?
We finally have an answer to that question.
A web of plant roots interacts symbiotically with arbuscular mycorrhizal (AM) fungi that extend their hyphae from the root system further into the earth, accessing nutrients such as phosphates to give to the plant in return for carbohydrates.
The study was published in journal Current Biology.
Taking a much closer look inside root cortical cells, we will find dynamic, branching fungal structures called arbuscules where the two organisms can exchange their goods.
Washington D.C. [USA], Apr. 1 : A team of scientists has paved the way for ultrafast and reconfigurable on-chip wireless communication systems with unmatched advantages in compactness, low power consumption and low fabrication complexity.
Researchers from the University of Sydney made a breakthrough achieving radio frequency signal control at sub-nanosecond time scales on a chip-scale optical device.
Radio frequency (RF) is a particular range of electromagnetic wave frequencies, widely used for communications and radar signals. The work should impact the current wireless revolution.
Washington D.C. [USA], Mar. 31 : A new research has ruled out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure.
The vast polar structure, a plane of satellite galaxies at the poles of the Milky Way, is at the center of a tug-of-war between scientists who disagree about the existence of mysterious dark matter, the invisible substance that, according to some scientists, comprises 85 percent of the mass of the universe.
The paper bolsters the standard cosmological model, or the Cold Dark Matter paradigm, by showing that the vast polar structure formed well after the Milky Way and is an unstable structure.
Washington D.C. [USA], Mar. 31 : Trees are considered as one of our biggest natural allies in the war against global warming, but in a new twist, scientists have found that the army of green is spewing out methane.
The University of Delaware study is one of the first in the world to show that tree trunks in upland forests actually emit methane rather than store it, representing a new, previously unaccounted source of this powerful greenhouse gas.
Methane is about 25 times stronger than carbon dioxide, with some estimates as high as 33 times stronger due to its effects when it is in the atmosphere.
Washington D.C. [USA], Mar. 30 : A new study has suggested that the use of cannabis may impact treatment in women undergoing methadone treatment therapy.
Researchers from McMaster University and St. Joseph's Healthcare Hamilton have found that women in methadone treatment who use cannabis are 82 per cent more likely to continue using opioids. This means that women who use cannabis are at high risk of failing methadone treatment.
"About 60 per cent of men and 44 per cent of women who are undergoing methadone treatment therapy also use cannabis," said senior author Zena Samaan. "Tailoring treatment to the patient's sex can help us to assess the patient's risk better and deliver more accurate, personalized treatment."
Washington D.C. [USA], Mar. 30 : A team of researchers has shed some light on how flying birds communicate with each other.
Zebra finches are social songbirds that use distance calls to establish contact with one another, similar to the way humans use speech to communicate.
Although it has been demonstrated that these birds can determine the identity of a caller as far away as 256 meters (or about 830 feet), it is not clear how their brain extracts this information from the call, which becomes degraded and loses intensity relative to the background noise as it travels through the environment.
Washington D.C. [USA], Mar. 30 : Astronauts may soon be able to communicate faster to and from space as NASA's advanced laser communications system called LEMNOS has brought speedy connections closer to the reality.
Imagine being able to watch 4K ultra-high-definition (UHD) video as humans take their first steps on another planet. Or imagine astronauts picking up a cell phone and video-conferencing their family and friends from 34 million miles away, just the same as they might on Earth. LEMNOS, Laser-Enhanced Mission and Navigation Operational Services, may make these capabilities and more a reality in the near future.
Washington D.C. [USA], Mar. 30 : A new class of carbon nanotubes may soon become the next-generation clean-up crew for toxic sludge and contaminated water, a new study suggested.
Enhanced single-walled carbon nanotubes offer a more effective and sustainable approach to water treatment and remediation than the standard industry materials, silicon gels and activated carbon, according to researchers at Rochester Institute of Technology.
Authors John-David Rocha and Reginald Rogers demonstrated the potential of this emerging technology to clean polluted water. Their work applies carbon nanotubes to environmental problems in a specific new way that builds on a nearly two decades of nanomaterial research. Nanotubes are more commonly associated with fuel-cell research.
Washington D.C. [USA], Mar.23 : What the CRAB!
The scientists have found a new species of terrestrial crab, climbing trees on the eastern coast of Hong Kong.
The species is described in the open access journal ZooKeys.
All specimens spotted during the survey have been collected at a height of approximately 1.5 - 1.8 m, walking on the bark of the branches at ebbing and low tides.
The characteristics of the newly found species are squarish predominantly dark brown carapace, very long legs and orange chelipeds.
The species is less than a centimetre long, with the studied specimens measuring between eight and nine millimetres, irrespective of their sex.
The chelipeds of the males appear stout, while in females they are distinctly leaner.
Washington D.C. [USA], Mar. 18 : A decade after Pluto was ousted from the planet lineup, a supporter of the now dwarf planet is fighting to restore its title.
Johns Hopkins University scientist Kirby Runyon wants to make one thing clear: Regardless of what one prestigious scientific organization says to the contrary, Pluto is a planet.
So, he said, is Europa, commonly known as a moon of Jupiter, and so is the Earth's moon, and so are more than 100 other celestial bodies in our solar system that are denied this status under the prevailing definition of "planet."
Washington D.C. [USA], Mar. 17 : A team of German researchers has discovered that absence of a specific protein in regions of the brain may be the major cause of obsessive-compulsive disorder (OCD).
Around two percent of the general population suffer from some kind of OCD, at least once in their life, where a person suffers from persistent intrusive thoughts by repetitive ritualised behaviour.
"We were able to show in mouse models that the absence of the protein SPRED2 alone can trigger an excessive grooming behaviour," said Professor Kai Schuh from the Institute of Physiology at the Julius-Maximilians-Universitat (JMU) Würzburg in Germany.
Washington D.C. [USA], Mar. 16 : Beware before watching that video on YouTube as your viewing history and other internet video platforms can be tracked, suggesting that video encryption is not as secure as we once thought, warns a study.
According to researchers, gaps in YouTube's encryption enable both government intelligence agencies, hackers and internet marketers to determine videos you watched.
Intelligence agencies could access this technology for tracking terrorists or other suspicious individuals.
Despite YouTube's attempts to safeguard user anonymity, intelligence agencies, hackers and online advertising companies can still determine which videos a user is watching.
Washington D.C. [USA], Mar. 16 : Earth's radiation belts, two doughnut-shaped regions of charged particles encircling our planet,were discovered more than 50 years ago, but their behaviour is still not completely understood.
Now, new observations from NASA's Van Allen Probes mission show that the fastest, most energetic electrons in the inner radiation belt are not present as much of the time as previously thought.
The results show that there typically isn't as much radiation in the inner belt as previously assumed, which is good news for spacecraft flying in the region.
Washington D.C. [U.S.A.], Mar. 15 : A study shows that global spider population - with a weight of around 25 million tonnes - wipes out an estimated 400-800 million tonnes of prey every year, thus making an essential contribution to maintain the ecological balance of nature.
According to Zoologists at the University of Basel in Switzerland and Lund University in Sweden, more than 90 percent of the prey is insects and springtails (Collembola) and furthermore, large tropical spiders occasionally prey on small vertebrates - frogs, lizards, snakes, fish, birds and bats - or feed on plants.
The study was published in the journal 'The Science of Nature'.
Washington D.C. [U.S.A.], Mar. 15 : A team of researchers has discovered fossils of 1.6 billion-year-old probable red algae in India, indicating that advanced multicellular life evolved on earth much earlier than previously thought.
The study, appeared in the open access journal PLOS Biology, found two kinds of fossils resembling red algae - first type is thread-like, the other one consists of fleshy colonies - in uniquely well-preserved sedimentary rocks at Chitrakoot in Central India.
The scientists were able to see distinct inner cell structures and so-called cell fountains, the bundles of packed and splaying filaments that form the body of the fleshy forms and are characteristics of red algae.
Washington D.C. [USA], Mar. 13 : Turns out, brain is 10 times more active than previously measured.
This UCLA finding could change scientists' understanding of how the brain works and could lead to new approaches for treating neurological disorders and for developing computers that "think" more like humans.
The research focused on the structure and function of dendrites, which are components of neurons, the nerve cells in the brain. Neurons are large, tree-like structures made up of a body, the soma, with numerous branches called dendrites extending outward.