The microbes that call the New York City subway system home are mostly harmless, but include samples of disease-causing bacteria that are resistant to drugs -- and even DNA fragments associated with anthrax and Bubonic plague -- according to a citywide microbiome map published today by Weill Cornell Medical College investigators.
Earth
Edible oyster mushrooms have an intriguing secret: they eat spiders and roundworms. And they do so using proteins that can punch their way into cells, leaving tidy but deadly holes. It's a trick that our immune cells also use to protect us, destroying infected cells, cancerous cells, and bacteria.
Termites might not top the list of humanity's favorite insects, but new research suggests that their large dirt mounds are crucial to stopping the spread of deserts into semi-arid ecosystems and agricultural lands. The results not only suggest that termite mounds could make these areas more resilient to climate change than previously thought, but could also inspire a change in how scientists determine the possible effects of climate change on ecosystems.
Scientists at the University of California, Berkeley, have found the mechanism by which titanium, prized for its high strength-to-weight ratio and natural resistance to corrosion, becomes brittle with just a few extra atoms of oxygen.
Vast ranges of volcanoes hidden under the oceans are presumed by scientists to be the gentle giants of the planet, oozing lava at slow, steady rates along mid-ocean ridges. But a new study shows that they flare up on strikingly regular cycles, ranging from two weeks to 100,000 years--and, that they erupt almost exclusively during the first six months of each year.
These new NASA/ESA Hubble Space Telescope images capture a rare occurrence as three of Jupiter's largest moons parading across the giant gas planet's banded face. Hubble took a string of images of the event which show the three satellites -- Europa, Callisto and Io -- in action.
Light and matter can be so strongly linked that their characteristics become indistinguishable. These light-matter couplings are referred to as polaritons. Their energy oscillates continuously between both systems, giving rise to attractive new physical phenomena. Now, scientists in France have explained why such polaritons can remain for an unusual long time at the lowest energy levels, in such a way that alters the microscopic and macroscopic characteristics of their constituting matter. These findings thus pave the way for optical, electronic and chemical applications.
Scientists have found a genetic mechanism that could stop the spread of a "devastating" disease threatening wheat crops.
Septoria leaf blotch (STB) is caused by a fungus and is seen as the most significant threat to wheat yields in Europe, and most other wheat growing regions, as currently available fungicides become less effective against resistant strains of the disease. Researchers at Durham University, working with partners from Newcastle University and Rothamsted Research, have now found a way that could potentially be used to stop extensive spreading of STB disease.
In the world of single atoms and molecules governed by chaotic fluctuations, is the spontaneous formation of Turing patterns possible - the same ones that are responsible for the irregular yet periodic shapes of the stripes on zebras' bodies? A Polish-Danish team of physicists has for the first time demonstrated that such a process can not only occur, but can also be used for potentially very interesting applications.
Scientists have discovered how prized bluefin tuna keep their hearts pumping during temperature changes that would stop a human heart. The research helps to answer important questions about how animals react to rapid temperature changes, knowledge that's becoming more essential as the earth warms.
A team of US scientists have found "beautifully preserved" 15 million-year-old thin protein sheets in fossil shells from southern Maryland. Their findings are published in the inaugural issue of Geochemical Perspectives Letters, the new peer-reviewed journal of the European Association of Geochemistry.
A novel class of materials that enable a safer, cheaper, and more energy-efficient process for removing greenhouse gas from power plant emissions has been developed by a multi-institution team of researchers. The approach could be an important advance in carbon capture and sequestration (CCS).
SALT LAKE CITY, Feb. 5, 2015 - The conservation value of growing coffee under trees instead of on open farms is well known, but hasn't been studied much in Africa. So a University of Utah-led research team studied birds in the Ethiopian home of Arabica coffee and found that "shade coffee" farms are good for birds, but some species do best in forest.
The "Pineapple Express" has set up again and is bringing wet weather to the U.S. Pacific Northwest. An animation of satellite imagery from NOAA's GOES-West satellite from Feb. 1 to Feb. 4, 2015 captured the movement of a stream of clouds associated with moisture that is expected to bring rain and snow to the region over the next several days.
The ''Pineapple Express'' occurs when warm air and lots of moisture are transported from the Central Pacific, near Hawaii, to the Eastern Pacific Ocean.
New evidence showing the level of atmospheric CO2 millions of years ago supports recent climate change predications from the Intergovernmental Panel on Climate Change (IPCC).
A multinational research team, led by scientists at the University of Southampton, has analysed new records showing the CO2 content of the Earth's atmosphere between 2.3 to 3.3 million years ago, over the Pliocene.