Heavens

Black holes and warped space: New UK telescope shows off first

Spearheaded by the University of Manchester's Jodrell Bank Observatory and funded by the Science and Technology Facilities Council, the e-MERLIN telescope will allow astronomers to address key questions relating to the origin and evolution of galaxies, stars and planets.

To demonstrate its capabilities, University of Manchester astronomers turned the new telescope array toward the "Double Quasar". This enigmatic object, first discovered by Jodrell Bank, is a famous example of Einstein's theory of gravity in action.

Greedy algorithms best for multiple targets

What algorithms should an air defense system work with? Particle swarm algorithms if there are ten targets to be hit. If there are more than ten targets, greedy algorithms work best. These findings are presented by researcher Fredrik Johansson at the Informatics Research Centre, University of Skövde, in Sweden.

So-called TEWA systems (Threat Evaluation & Weapon Allocation) are used to protect strategic targets from enemy attacks, such as an airfield that needs to be protected from incoming missiles.

Planetary family portrait of system HR 8799 reveals another exoplanet

Planetary family portrait of  system HR 8799 reveals another exoplanet

WASP-12b: Carbon-rich planet a girl's best friend?

 Carbon-rich planet a girl's best friend?

A peculiar gas-giant planet orbiting a sun-like star 1200 light-years away is the first carbon-rich world ever observed.

The implications are big for planetary chemistry, because without much oxygen, common rocks throughout the planet would be made of pure carbon, in forms such as diamonds or graphite.

Astronomers discover new planet in HR 8799 planetary system similar to our solar system

An international team of astronomers has discovered and imaged a fourth giant planet outside our solar system, a discovery that further strengthens the remarkable resemblances between a distant planetary system and our own.

The research is published Dec. 8 in the advance online version of the journal Nature.

The astronomers say the planetary system resembles a supersized version of our solar system.

New pictures show fourth planet in giant version of our solar system

LIVERMORE, Calif. – Astronomers have discovered a fourth giant planet, joining three others that, in 2008, were the subject of the first-ever pictures of a planetary system orbiting another star other than our sun.

Changes in solar activity affect local climate

Raimund Muscheler is a researcher at the Department of Earth and Ecosystem Sciences at Lund University in Sweden. In the latest issue of the journal Science, he and his colleagues have described how the surface water temperature in the tropical parts of the eastern Pacific varied with the sun's activity between 7 000 and 11 000 years ago (early Holocene). Contrary to what one might intuitively believe, high solar activity had a cooling effect in this region.

WASP-12b: Astronomers detect first carbon-rich exoplanet

CAMBRIDGE, Mass. -- A team of astrophysicists recently measured the first-ever planetary atmosphere that is substantially enriched in carbon. The researchers found that the carbon-to-oxygen ratio of WASP-12b, an exoplanet about 1.4 times the mass of Jupiter and located about 1,200 light years away, is greater than one. As they report in a paper to be published on Dec. 8 in Nature, this carbon-rich atmosphere supports the possibility that rocky exoplanets could be composed of pure carbon rocks like diamond or graphite rather than the silica-based rock found in Earth.

ASU astronomer opens new window into early universe

ASU astronomer opens new window into early universe

New forms of dietary fiber to boost health

High-fiber foods are on the way to becoming tastier and more appealing to consumers thanks to new types of dietary fiber now under development. These consumer friendlier forms of fiber, which could be a boon to health, are the topic of an article in the current issue of Chemical & Engineering News (C&EN), ACS' weekly newsmagazine.

A swarm of ancient stars

A swarm of ancient stars

NASA satellites see heavy rainfall and displaced thunderstorms in System 94B

NASA satellites see heavy rainfall and displaced thunderstorms in System 94B

System 94B has not been classified as a tropical depression, but NASA satellite data has shown that it is creating heavy rainfall near India's southeastern coast. A second NASA satellite revealed that strong wind shear is continuing to push convection to the northwest of System 94B's center of circulation.

Nanoparticle gives antimicrobial ability to fight Listeria longer

WEST LAFAYETTE, Ind. - A Purdue University research team developed a nanoparticle that can hold and release an antimicrobial agent as needed for extending the shelf life of foods susceptible to Listeria monocytogenes.

Rocking the cradle after 45

Tel Aviv ― Career women who put babies on hold until after 40, or even 45, will be reassured by new research from Tel Aviv University. Even though there are associated risks for babies when postponing child-bearing, the neonates can overcome them, says Prof. Yariv Yogev of Tel Aviv University's Sackler School of Medicine and the Hospital for Women at Rabin Medical Center.

Conditioning reefs for the future

In a world first, a new 'state of the art' climate change experimental facility has been completed at the University of Queensland's Heron Island Research Station.

The Climate Change Mesocosm (CCM) project led by Associate Professor Sophie Dove and Dr. David Kline from the Global Change Institute's Coral Reef Ecosystems Laboratory is one of the largest and most accurately controlled ocean acidification and warming experimental systems in the world and simulates ocean temperatures and acidification levels predicted to occur on coral reefs in the next 50 to 100 years.