Heavens

A thin-skinned catalyst for chemical reactions

CHESTNUT HILL, MA (Dec. 13, 2012) – A chemical nanostructure developed by Boston College researchers behaves much like the pores of the skin, serving as a precise control for a typically stubborn method of catalysis that is the workhorse of industrial chemistry.

Scientists have been trying to develop so-called yolk-shell catalysts as a means of imparting greater selectivity on heterogeneous catalysis, a process used in most industrial chemistry, including the manufacture of fine chemicals, petrochemicals and agrochemicals.

NASA sees newborn Tropical Storm Evan causing trouble for American Samoa

The date 12-12-12 may be numerically significant, but for the residents of American Samoa and Fiji in the South Pacific Ocean, it means a newborn tropical storm named Evan is causing problems. NASA's Aqua satellite and NOAA's GOES-15 satellite both captured imagery of the newborn storm's cloud cover.

Tropical Storm Evan caused regional warnings to be posted on Dec. 12. In American Samoa, a gale warning and storm watch are in effect for Tutuila, Aunuu, Manua and Swains Island.

Astronomers catch jet from binge-eating black hole

Back in January, a new X-ray source flared and rapidly brightened in the Andromeda galaxy (M31), located 2.5 million light-years away. Classified as an ultraluminous X-ray source (ULX), the object is only the second ever seen in M31 and became the target of an intense observing campaign by orbiting X-ray telescopes -- including NASA's Swift -- and radio observatories on the ground. These efforts resulted in the first detection of radio-emitting jets from a stellar-mass black hole outside our own galaxy.

NASA'S Hubble provides first census of galaxies near cosmic dawn

WASHINGTON -- Using NASA's Hubble Space Telescope, astronomers have uncovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago, when the universe was less than 4 percent of its present age. The deepest images to date from Hubble yield the first statistically robust sample of galaxies that tells how abundant they were close to the era when galaxies first formed.

Hubble census finds galaxies at redshifts 9 to 12

Astronomers using the NASA/ESA Hubble Space Telescope have uncovered seven primitive galaxies from a distant population that formed more than 13 billion years ago. In the process, their observations have put forward a candidate for the record for the most distant galaxy found to date (at redshift 11.9), and have shed new light on the earliest years of cosmic history. The galaxies are seen as they were when the Universe was less than 4 percent of its present age.

Caltech-led astronomers discover galaxies near cosmic dawn

PASADENA, Calif.—A team of astronomers led by the California Institute of Technology (Caltech) has used NASA's Hubble Space Telescope to discover seven of the most primitive and distant galaxies ever seen.

Microquasar found in neighbor galaxy, tantalizing scientists

For the first time, astronomers have found a microquasar -- a black hole devouring material from a companion star -- in a galaxy beyond our own Milky Way. The object, pumping out X-rays and bright bursts of radio waves, was found in the Andromeda Galaxy, 2.5 million light-years from Earth.

The discovery, scientists say, gives hope that more such objects may be found in nearby galaxies, providing them with opportunities to make detailed studies that will unravel the mystery of just how these enigmatic powerhouses -- and their big brothers -- actually work.

Astronomers discover 'missing link' of black holes

The discovery of a bingeing black hole that is expelling powerful beams of material has shed new light on some of the brightest X-ray sources seen in other galaxies, according to new research led by Durham University.

Using Earth-orbiting X-ray telescopes, including NASA's Swift and the European Space Agency's XMM-Newton satellites, a large international team of astronomers watched as the X-ray emission from the black hole in our nearest neighbouring galaxy, Andromeda – found more than 2 million light years away – brightened and faded over the course of six months.

Automated design for drug discovery

A system of 'automated design' for new drugs could help develop the complex therapies needed for many medical conditions while also improving drug safety and efficiency, new research from the University of Dundee has shown.

The 'Moneyball' approach taken by the research team utilises the principles of advanced statistical and data analysis which have seen to be increasingly influential in areas as varied as sport, finance and in forecasting the recent US Presidential election.

Astronomers discover 'missing link' of black holes

The discovery of a bingeing black hole in our nearest neighbouring galaxy, Andromeda, has shed new light on some of the brightest X-ray sources seen in other galaxies, according to new work co-authored by astronomers from the International Centre for Radio Astronomy Research's Curtin University node.

Solar power prices to continue falling through 2025, experts say

Prices for solar modules—the part of solar panels that produce electricity—will continue to fall, in line with the long-term trend since 1980, according to a survey of experts by Near Zero, , a nonprofit energy research organization. However, for prices to keep falling for the long term will require continued committment to research, such as on materials used for making solar modules.

Industry sponsorship leads to bias in reported findings of clinical trials

Studies reporting the results of industry sponsored clinical trials present a more favourable picture of the effects of drugs and medical devices than those reporting on non-industry sponsored trials, according to a new Cochrane systematic review. The researchers call for a rethink of the way that industry bias is handled in medical guidelines and reviews.

Psychological therapies improve life for children with post-traumatic stress disorder

Children suffering post-traumatic stress disorder (PTSD) as a result of traumatic events, including child abuse, may benefit from psychological therapies, according to a review published in The Cochrane Library. In the first systematic review of PTSD in young people, researchers found that children and teenagers diagnosed with PTSD showed signs of improvement up to three months following treatment and called for more studies to assess long-term benefits.

NASA's EUNIS mission: 6 minutes in the life of the sun

In December, a NASA mission to study the sun will make its third launch into space for a six-minute flight to gather information about the way material roils through the sun's atmosphere, sometimes causing eruptions and ejections that travel as far as Earth. The launch of the EUNIS mission, short for Extreme Ultraviolet Normal Incidence Spectrograph, is scheduled for Dec. 15, 2012, from White Sands, N.M. aboard a Black Brant IX rocket.

An older Vega: New insights about the star all others are measured by

ANN ARBOR—Vega, a star astronomers have used as a touchstone to measure other stars' brightness for thousands of years, may be more than 200 million years older than previously thought. That's according to new findings from the University of Michigan.

The researchers estimated Vega's age by precisely measuring its spin speed with a tool called the Michigan Infrared Combiner, developed by John Monnier, associate professor of astronomy in U-M's College of Literature, Science, and the Arts.