The Sky Tonight

August 21, 2015

Experiment attempts to snare a dark energy 'chameleon'
Berkeley CA (SPX) Aug 21, 2015
If dark energy is hiding in our midst in the form of hypothetical particles called "chameleons," Holger Muller and his team at the University of California, Berkeley, plan to flush them out. The results of an experiment reported in this week's issue of Science narrows the search for chameleons a thousand times compared to previous tests, and Muller, an assistant professor of physics, hopes that his next experiment will either expose chameleons or similar ultralight particles as the real dark energ ... read more

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Cassini's Final Breathtaking Close Views of Dione A pockmarked, icy landscape looms beneath NASA's Cassini spacecraft in new images of Saturn's moon Dione taken during the mission's last close approach to the small, icy world. Two of the new images ... more		A new model of gas giant planet formation Queen's University researcher Martin Duncan has co-authored a study that solves the mystery of how gas giants such as Jupiter and Saturn formed in the early solar system. In a paper published ... more		Antarctic detector firms up cosmic neutrino sighting Researchers using the IceCube Neutrino Observatory have sorted through the billions of subatomic particles that zip through its frozen cubic-kilometer-sized detector each year to gather powerful new ... more
				Mystery of exploding stars yields to astrophysicists A longstanding mystery about the tiny stars that let loose powerful explosions known as Type Ia supernovae might finally be solved. For decades, astronomers have debated whether one white dwarf star ... more		IAU Signs Agreements for Five New Coordinating Offices of Astronomy The International Astronomical Union's (IAU) Office of Astronomy for Development (OAD) has established new coordinating offices in Armenia, Colombia, Jordan, Nigeria and Portugal. Supporting the use ... more

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Planetary pebbles were building blocks for the largest planets Researchers at Southwest Research Institute (SwRI) and Queen's University in Canada have unraveled the mystery of how Jupiter and Saturn likely formed. This discovery, which changes our view of how ... more		Crowdfunding raises $720,000 to restore Neil Armstrong spacesuit The Smithsonian's first shot at online crowdfunding ended Wednesday after raising a hefty $719,779 to restore the spacesuit that Neil Armstrong wore when he walked on the moon. ... 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		ESO Spots Sibling Stars Open star clusters like the one seen here are not just perfect subjects for pretty pictures. Most stars form within clusters and these clusters can be used by astronomers as laboratories to study ho ... more
				Japanese Company to Advertise Soft Drink on Moon A new age in advertising has already begun, as a Japanese company has kicked off its campaign to promote the beverage Pocari Sweat...on the moon! Pocari Sweat, a beverage produced by Otsuka Pharmace ... more		Solar System formation don't mean a thing without that spin New work from Carnegie's Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is publis ... more

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Comet Impacts May Have Led to Life on Earth Comet impact on Earth are synonymous with great extinctions, but now research presented at the Goldschmidt geochemistry conference in Prague shows that early comet impact would have become a driving ... more		Programming and prejudice Software may appear to operate without bias because it strictly uses computer code to reach conclusions. That's why many companies use algorithms to help weed out job applicants when hiring for a ne ... 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		Attosecond electron catapult Physicists from Ludwig-Maximilians-Universitat (LMU) in Munich studied the interaction of light with tiny glass particles. A team of physicists and chemists from Ludwig-Maximilians-Universitat Munic ... more
LADEE spacecraft finds neon in lunar atmosphere The moon's thin atmosphere contains neon, a gas commonly used in electric signs on Earth because of its intense glow. While scientists have speculated on the presence of neon in the lunar atmosphere ... more		Equatorial regions are prone to disruptive space weather, new study finds Extreme space weather has long been seen as a threat to electrical grids in high-latitude regions of the northern and southern hemispheres. A new study finds that smaller space weather effects are a ... more		Celestial firework marks nearest galaxy collision A spectacular galaxy collision has been discovered lurking behind the Milky Way. The closest such system ever found, the discovery was announced today by a team of astronomers led by Prof. Quentin P ... more		Cassini to Make Last Close Flyby of Saturn Moon Dione NASA's Cassini spacecraft will zip past Saturn's moon Dione on Monday, Aug. 17 - the final close flyby of this icy satellite during the spacecraft's long mission. Cassini's closest approach, w ... more

	Hubble Finds Supernovae in 'Wrong Place at Wrong Time' Scientists have been fascinated by a series of unusual exploding stars - outcasts beyond the typical cozy confines of their galaxies. A new analysis of 13 supernovae - including archived data from N ... more		Dark Energy Survey finds more celestial neighbors Scientists on the Dark Energy Survey, using one of the world's most powerful digital cameras, have discovered eight more faint celestial objects hovering near our Milky Way galaxy. Signs indicate th ... more

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Astronomers discover new planet orbiting two stars

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Gravitational Constant appears universally constant, Pulsar study suggests

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