Two new views from NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope’s talent for spying objects near and far. One image shows the energized remains of a dead star, a structure nicknamed the “Hand of God” after its resemblance to a hand. Another image shows distant black holes buried in blankets of dust.
“NuSTAR’s unique viewpoint, in seeing the highest-energy X-rays, is showing us well-studied objects and regions in a whole new light,” said Fiona Harrison, the mission’s principal investigator at the California Institute of Technology in Pasadena, Calif. (more…)
UD oceanographer reports on human-caused changes to carbon cycling
Carbon dioxide pumped into the air since the Industrial Revolution appears to have changed the way the coastal ocean functions, according to a new analysis published this week in Nature.
A comprehensive review of research on carbon cycling in rivers, estuaries and continental shelves suggests that collectively this coastal zone now takes in more carbon dioxide than it releases. The shift could impact global models of carbon’s flow through the environment and future predictions related to climate change. (more…)
There is no approved medicine to treat polyomaviruses, which afflict people with weakened immune systems, but scientists have found that a chemical compound called Retro-2 is able to reduce significantly the infectivity and spread of the viruses in lab cell cultures. Now they are working to improve it.
PROVIDENCE, R.I. [Brown University] — A team of scientists reports that a small-molecule compound showed significant success in controlling the infectivity and spread of three polyomaviruses in human cell cultures. To date there has been no medicine approved to treat such viruses, which prey on transplant recipients, people with HIV, and others whose immune systems have been weakened. (more…)
It’s a bouncing baby . . . star! Combined observations from NASA’s Spitzer Space Telescope and the newly completed Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have revealed the throes of stellar birth as never before in the well-studied object known as HH 46/47.
Herbig-Haro (HH) objects form when jets shot out by newborn stars collide with surrounding material, producing small, bright, nebulous regions. To our eyes, the dynamics within many HH objects are obscured by enveloping gas and dust. But the infrared and submillimeter wavelengths of light seen by Spitzer and ALMA, respectively, pierce the dark cosmic cloud around HH 46/47 to let us in on the action. (more…)
Robert J. Shiller, the Sterling Professor of Economics at Yale University, has been awarded a Nobel Prize in Economic Sciences. He shares the award — formally, the 2013 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel — with Eugene F. Fama and Lars Peter Hansen from the University of Chicago. According to the Nobel committee, the three were honored “for their empirical analysis of asset prices.”
Shiller, whose name became a household word with the wide use of the Case-Shiller Home Price real estate Index, came to national prominence with the publication in 2000 of “Irrational Exuberance.” The book, which quickly became a bestseller, described speculative bubbles fueled by mass misinformation and herd instinct, and accurately predicted the dot.com implosion. As early as 2003, Shiller warned of the housing market collapse, and later wrote a precept for recovery, “Subprime Solution: How the Global Financial Crisis Happened and What to Do about It.” (more…)
It was announced on Oct. 10 that Family Equality, which represents the 3 million LGBT parents in America and their 6 million children, will deed to Yale all historical materials related to the organization and its role in the LGBT family equality movement. The agreement ensures the preservation of more than 30 years of materials related to the founding, growth, and expansion of Family Equality, and documents the organization’s ongoing efforts to advance equality for families with LGBT parents. (more…)
Yong Zhu, associate professor of environmental health sciences at the School of Public Health, investigates how the disruption in sleep cycles causes molecular changes that lead to cancer. *Source: Yale University
ANN ARBOR — In a long-buried Italian city, archaeologists have found a massive monument that dates back 300 years before the Colosseum and 100 years before the invention of mortar, revealing that the Romans had grand architectural ambitions much earlier than previously thought.
The structure, unearthed at the site known as Gabii, just east of Rome, is built with giant stone blocks in a Lego-like fashion. It’s about half the size of a football field and dates back 350-250 years BCE. It’s possibly the earliest public building ever found, said Nicola Terrenato, a University of Michigan classics professor who leads the project—the largest American dig in Italy in the past 50 years. (more…)
