Researchers found a small dust concentration in the disk around TW Hydrae, the nearest young star. It is highly possible that a planet is growing or about to be formed in this concentration. This is the first time that the exact place where cold materials are forming the seed of a planet has been pinpointed in the disk around a young star.
Researchers have discovered 56 previously uncharted subglacial lakes beneath the Greenland Ice Sheet bringing the total known number of lakes to 60. Although these lakes are typically smaller than similar lakes in Antarctica, their discovery demonstrates that lakes beneath the Greenland Ice Sheet are much more common than previously thought.
Scientists discover a connection between lightning strikes and two kinds of gamma-ray phenomena in thunderclouds. The research suggests that in certain conditions, weak gamma-ray glows from thunderclouds may precede lightning bolts and their accompanying gamma-ray flashes.
Each year, soft robots gain new abilities. They can jump, squirm, and grip. Unlike hard robots, they can handle tomatoes without bruising the fruit, resurface unscathed after being run over by a car, and journey through radiation, disaster zones, and outer-space with few scars. Now, a new invention gives soft robots the ability to roll, undulate, sort, meter liquids, and swallow. Customizable designs could find use in labs, hospitals, and even inside the human body.
Hand hygiene is a critical component of infection prevention in hospitals, but the unintended consequences include water splashing out of a sink to spread contaminants from dirty faucets according to new research.
Researchers have studied which genes are expressed in overactive immune cells in mice with asthma-like inflammation of the airways. Their results suggest that the synthesis and breakdown of fats plays an important part in the process.
A new study, published in the June 11 issue of the journal Cell Reports, found that poly(ADP ribose), or PAR, a molecule once thought only to exist inside cells for the purpose of repairing DNA, is responsible for hardening (biomineralization) of the arteries. Additionally, using rats with chronic kidney disease, the study found that minocycline [...]
Narwhals (Monodon monoceros) and beluga whales (Delphinapterus leucas) are medium-sized toothed whales and the sole representatives of the Monodontidae family. They are the only toothed whales endemic to the Arctic region. While they are each other’s closest relatives and roughly equal in size, these two species differ in their morphology and behavior. Now, a series [...]
Gamma-ray bursts (GRBs) are the most energetic explosions in the Universe, beaming out mighty jets which travel through space at 0.99 times the speed of light, as a star much more massive than our Sun collapses at the end of its life to produce a black hole. Scientists have struggled to understand how these powerful [...]
The North Pacific right whale (Eubalaena japonica) is a very large, thickset baleen whale species that is extremely rare and endangered. It ranges from Japan in the west to Alaska and the west coast of North America in the east. A team of marine biologists from NOAA Fisheries and the University of Washington has recorded [...]
Instead of the typical bell-shaped curve, the fossil record shows a fat-tailed distribution, with extreme, outlier, events occurring with higher-than-expected probability. Using the same mathematical tools that describe stock market crashes, scientists explain the evolutionary dynamics that give rise to universal patterns in the fossil record.
How did humans get to be so much fatter than our closest primate relatives, despite sharing 99% of the same DNA? A new study suggests that part of the answer may have to do with an ancient molecular shift in how DNA is packaged inside fat cells, which curbed our body's ability to turn 'bad' white fat into 'good' brown fat.
Animals learn the hard way which sights, sounds, and smells are relevant to survival. New research in flies shows that the timing of these cues plays an important role in how mental associations arise, and elucidates brain pathways involved in this process.
An international team of physicists from the United States and Japan has demonstrated a series of fractional quantum Hall effect states that arise in double-layer stacks of graphene. The team’s paper was published in the journal Nature Physics. The Hall effect emerges when a magnetic field is applied to a conducting material in a perpendicular [...]
A team of scientists at the Technische Universität München in Germany has identified the key compounds that give soft pretzels their distinctive scent. The characteristic taste, texture and smell of pretzels results in part from lye treatment of the pretzel dough, as well as from the coarse salt sprinkled on top. Like other foods, pretzels [...]
Archaeologists working in two Italian caves have discovered some of the earliest known examples of ancient humans using an adhesive on their stone tools -- an important technological advance called 'hafting.'
Aberrant postures have led to an increase in young adults developing a bone growth at the back of the skull, according to a study by University of the Sunshine Coast scientists. In 2016, University of the Sunshine Coast researchers David Shahar and Mark Sayers analyzed X-rays of 218 young Australians (18-30-year-old) and found that 41% [...]
A research team led by scientists from Boise State University and NASA’s Goddard Space Flight Center has identified several complex cyanide compounds in a set of CM chondrite meteorites. These extraterrestrial organometallic compounds are a source of free cyanide and also bear a striking similarity to portions of the active sites of hydrogeneses (enzymes that [...]