Manmade pollutants may be driving Earth's tropical belt expansion
Black carbon aerosols and tropospheric ozone, both manmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics further poleward in that hemisphere, new research by a team of scientists shows. View More (2012-05-17)
3-telescope interferometry allows astrophysicists to observe how black holes are fueled
By combining the light of three powerful infrared telescopes, an international research team has observed the active accretion phase of a supermassive black hole in the center of a galaxy tens of millions of light years away, a method that has yielded an unprecedented amount of data for such observations. View More (2012-05-17)
Air pollution level changes in Beijing linked with biomarkers of cardiovascular disease
During the 2008 Beijing Olympics, changes in air pollution were associated with changes in biomarkers of systemic inflammation and thrombosis (formation of blood clot) as well as measures of cardiovascular physiology in healthy young persons, according to a study in the May 16 issue of JAMA, a theme issue on Global Health. View More (2012-05-16)
A deeper look at Centaurus A
Centaurus A, also known as NGC 5128, is a peculiar massive elliptical galaxy with a supermassive black hole at its heart. View More (2012-05-16)
Massive black holes halt star birth in distant galaxies
Astronomers, using the European Space Agency's (ESA) Herschel Space Observatory, have shown that the number of stars that form during the early lives of galaxies may be influenced by the massive black holes at their hearts. View More (2012-05-10)
Beetle-fungus disease threatens crops and landscape trees in Southern California
A plant pathologist at the University of California, Riverside has identified a fungus that has been linked to the branch dieback and general decline of several backyard avocado and landscape trees in residential neighborhoods of Los Angeles County. View More (2012-05-09)
Queen's scientists discover black hole ripping apart star
Astronomers from Queen's University Belfast have gathered the most direct evidence yet of a supermassive black hole shredding a star that wandered too close. View More (2012-05-04)
Black Hole Caught in a Feeding Frenzy
When it comes to scary things in the universe, it's hard to get much scarier than supermassive black holes. View More (2012-05-04)
Ecosystem effects of biodiversity loss could rival impacts of climate change, pollution
Loss of biodiversity appears to impact ecosystems as much as climate change, pollution and other major forms of environmental stress, according to a new study from an international research team. View More (2012-05-03)
Black hole caught red-handed in stellar homicide
Astronomers have gathered the most direct evidence yet of a supermassive black hole shredding a star that wandered too close. View More (2012-05-03)
Black Hole Caught Red-Handed in a Stellar Homicide
Astronomers have gathered the most direct evidence yet of a supermassive black hole shredding a star that wandered too close. NASA's Galaxy Evolution Explorer, a space-based observatory, and the Pan-STARRS1 telescope on the summit of Haleakala in Hawaii were among the first to help identify the stellar remains. View More (2012-05-03)
Portable gas sensors improve atmospheric pollution measurements
Different types of compact, low-power portable sensors under development by three independent research groups may soon yield unprecedented capabilities to monitor ozone, greenhouse gases, and air pollutants. View More (2012-05-01)
Rogue stars ejected from the galaxy are found in intergalactic space
It's very difficult to kick a star out of the galaxy. In fact, the primary mechanism that astronomers have come up with that can give a star the two-million-plus mile-per-hour kick it takes requires a close encounter with the supermassive black hole at the galaxy's core. View More (2012-05-01)
NASA's Chandra sees remarkable outburst from old black hole
An extraordinary outburst produced by a black hole in a nearby galaxy has provided direct evidence for a population of old, volatile stellar black holes. View More (2012-05-01)
Metal oxides hold the key to cheap, green energy
Harnessing the energy of sunlight can be as simple as tuning the optical and electronic properties of metal oxides at the atomic level by making an artificial crystal or super-lattice 'sandwich' says a Binghamton University researcher in a new study published in the journal Physical Review B. View More (2012-04-19)
Study Amplifies Understanding of Hearing in Baleen Whales
For decades, scientists have known that dolphins and other toothed whales have specialized fats associated with their jaws, which efficiently convey sound waves from the ocean to their ears. View More (2012-04-18)
Growing nitrous oxide levels explained
Published this week in the journal Nature Geoscience, the record is drawn from atmospheric sampling at the Cape Grim Baseline Air Pollution Station, Tasmania, and air extracted from the Antarctic ice sheet. View More (2012-04-05)
Black Holes Grow Big by Eating Stars
Most galaxies, including the Milky Way, have a supermassive black hole at their center weighing millions to billions of suns. View More (2012-04-03)
How black holes grow
A study led by a University of Utah astrophysicist found a new explanation for the growth of supermassive black holes in the center of most galaxies: they repeatedly capture and swallow single stars from pairs of stars that wander too close. View More (2012-04-02)
UC San Diego Physicists Find Patterns in New State of Matter
Physicists at the University of California, San Diego have discovered patterns which underlie the properties of a new state of matter. View More (2012-03-30)
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