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Updated: 1 hour 32 min ago
Humankind is by nature inquisitive, especially about the prospect of life on other planets and whether or not we are alone. The aptly named Curiosity, a NASA Mars rover, has been scouring that planet's surface as a potential habitat for life, either past or present. Now there are some exciting new findings.
About 65 million years ago, an asteroid or comet crashed into a shallow sea near what is now the Yucatán Peninsula of Mexico, resulting in the extinction of many land plants and large animals, including most of the dinosaurs. The remnants from this devastating impact are exposed along the Campeche Escarpment -- an immense underwater cliff in the southern Gulf of Mexico, according to new research.
Researchers have described a preliminary seafloor survey of an area off the Southern California coast marked on charts as a chemical munitions site. The preliminary survey turned up trash and 55-gallon drums, but no chemical munitions.
Coronary heart disease accounts for 18 percent of deaths in the United States every year. The disease results from a blockage of one or more arteries that supply blood to the heart muscle due to an inflammatory condition called artherosclerosis, leading to progressive buildup of fatty plaque near the surface of the arterial wall. A paper published proposes a mathematical model to improve currently-employed treatments of coronary heart disease.
Scientists are digging deep into the Earth's surface collecting census data on the microbial denizens of the hardened rocks. What they're finding is that, even miles deep and halfway across the globe, many of these communities are somehow quite similar.
Rivers and streams release carbon dioxide at a rate five times greater than the world's lakes and reservoirs combined, contrary to common belief.
Scientists believe a targeted drug delivery system could make ovarian cancer more treatable for the most deadly gynecological cancer in the United States. In animal research, the cancer is attacked at the genetic level by using small, inhibiting RNA molecules that directly target and decrease the excess CD44 protein in cancer cells while simultaneously treating patients with the anti-cancer drug paclitaxel. This allows cells within the cancerous tumors to be successfully treated even at an advanced stage.
New technology could aid in the detection of missiles and chemical and biological threats.
Scientists may be one step closer to tapping into the full potential of solar cells. The team found a way to create large sheets of nanotextured, silicon micro-cell arrays that hold the promise of making solar cells lightweight, more efficient, bendable and easy to mass produce.
Scientists find plasmons at the root of a terahertz peak seen in carbon nanotubes, but only in certain types. The discovery opens up the possibility of using nanotubes in terahertz-based optoelectronics.
The shape of a new composite material changes with the temperature in highly controllable ways. The material may be useful for biological, optical and pharmaceutical applications.
Scientists have discovered a novel chemical lurking in the atmosphere that appears to be a long-lived greenhouse gas. The chemical -- perfluorotributylamine -- is the most radiatively efficient chemical found to date, breaking all other chemical records for its potential to impact climate.
The region located between the surface of the sun and its atmosphere has been revealed as a more violent place than previously understood, according to images and data from NASA's newest solar observatory, the Interface Region Imaging Spectrograph, or IRIS.
Children hospitalized for pneumonia have similar outcomes, including length of stay and costs, regardless of whether they are treated with "big gun" antibiotics such as ceftriaxone or cefotaxime or more narrowly focused antibiotics such as ampicillin or penicillin, according to a study.
From tomatoes to pumpkins, most fruit and vegetable crops rely on pollination by bees and other insect species -- and the future of many of those species is uncertain. Now researchers are proposing a set of guidelines for assessing the performance of pollinator species in order to determine which species are most important and should be prioritized for protection.
Scientists have found evidence that there was once an ancient lake on Mars that may have been able to support life.
A new report, drawing on behavioral economics literature from 2001 to 2012, has examined how cognitive factors influencing people’s choices and preferences can affect the values that they place upon ecosystem services and upon ecosystem sustainability. Ecosystem services valuation is currently central to forestry and natural resources strategies and policy-making.
Flexible workplaces may seem attractive when considering work-life balance but new research being published shows it's not unusual for firms to cash-in, profiting from our "free" time and non-professional aptitudes, experts warn.
Researchers have, for the first time, watched organic solar cells degrade in real time. This work could open new approaches to increasing the stability of this highly promising type of solar cell.
Researchers have discovered a new, potentially life-saving application for polyethylene terephthalate (PET), which is widely used to make plastic bottles. They have successfully converted PET into a non-toxic biocompatible material with superior fungal killing properties.