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.
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.
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.
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.
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.
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.
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.
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.
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.
Astronomers have traced the waxing and waning light of exploding stars more closely than ever before and seen patterns that aren't yet accounted for in our current understanding of how these eruptions occur.
Using data from a sensitive instrument aboard a satellite that images the entire sky every 102 minutes, they studied four of these stars, or novae, that exploded so violently their light would have been visible without a telescope and measured their brightness over the course of the outburst.
Earth observation scientists at the University of Leicester have recorded stunning images of the UK's winter landscape by orbiting satellites.
European Space Agency satellite instruments have been observing the icy blast in the UK from their vantage points in space.
SANTA CRUZ, CA--A pair of neutron stars spiraling toward each other until they merge in a violent explosion should produce detectable gravitational waves. A new study led by an undergraduate at the University of California, Santa Cruz, predicts for the first time where such mergers are likely to occur in the local galactic neighborhood.
