The Sky Tonight

September 03, 2015

Distant planet's interior chemistry may differ from our own
Washington DC (SPX) Sep 03, 2015
As astronomers continue finding new rocky planets around distant stars, high-pressure physicists are considering what the interiors of those planets might be like and how their chemistry could differ from that found on Earth. New work from a team including three Carnegie scientists demonstrates that different magnesium compounds could be abundant inside other planets as compared to Earth. Their work is published by Scientific Reports. Oxygen and magnesium are the two most-abundant elements in Eart ... read more

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The symmetry of the universe What did the universe look like shortly after it came into being? The ALICE experiment (A Large Ion Collider Experiment) at CERN in Switzerland concerns itself with this question. At the largest par ... more		Hot electrons point the way to perfect light absorption Light-absorbing films can be found in many everyday applications such as solar cells or sensors. They are used to convert light into electrical current or heat. The films literally trap the light. A ... more		Cosmic recycling at the Prawn Nebula Deeply immersed in this huge stellar nursery are three clusters of hot young stars - only a few million years old - which glow brightly in ultraviolet light. It is the light from these stars that ca ... more
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Seeing Quantum Motion Consider the pendulum of a grandfather clock. If you forget to wind it, you will eventually find the pendulum at rest, unmoving. However, this simple observation is only valid at the level of classi ... more		Evidence suggests subatomic particles could defy the standard model The Standard Model of particle physics, which explains most of the known behaviors and interactions of fundamental subatomic particles, has held up remarkably well over several decades. This far-rea ... more		Taiwan running out of time for satellite communications, space chief tells AFP US lawmaker warns of military 'misunderstanding' risk with China Venezuela accuses US of waging 'undeclared war,' urges UN probe		Comet Hitchhiker Would Take Tour of Small Bodies Catching a ride from one solar system body to another isn't easy. You have to figure out how to land your spacecraft safely and then get it on its way to the next destination. The landing part is es ... more
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New, Ultrathin Optical Devices Shape Light in Exotic Ways Researchers have developed innovative flat, optical lenses as part of a collaboration between NASA's Jet Propulsion Laboratory and the California Institute of Technology, both in Pasadena, Californi ... more		Draw out of the predicted interatomic force Grant-in-Aid for Scientific Research, the Ministry of Education, Culture, Sports, Science and Technology, Japan. Liquid Bi shows a peculiar dispersion of the acoustic mode, which is related to the P ... more		Toxic homes a lasting legacy of Los Angeles fires 'Greatest con job ever': Trump trashes climate science at UN Turkey facing worst drought in over 50 years		Canyonlands National Park Named International Dark Sky Park The International Dark-Sky Association has granted Gold-Tier International Dark Sky Park status to Canyonlands National Park, an honor reserved for the darkest of dark skies and the most stunning of ... more
Supermassive black holes in nearest quasar A University of Oklahoma astrophysicist and his Chinese collaborator have found two supermassive black holes in Markarian 231, the nearest quasar to Earth, using observations from NASA's Hubble Spac ... more		Earth's mineralogy unique in the cosmos New research from a team led by Carnegie's Robert Hazen predicts that Earth has more than 1,500 undiscovered minerals and that the exact mineral diversity of our planet is unique and could not be du ... more		How to get rid of a satellite after its retirement Researchers at University of La Rioja (Spain) have developed a new method to eliminate artificial satellites in Highly Elliptical Orbits when they finish their mission. The methodology, which allows ... more		Contamination pathway for plutonium, other heavy elements, identified Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) have reported a major advance in understanding the biological chemistry of radioactive metals, opening up new avenues of research i ... more

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Detecting dark matter might need a different approach

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