The Sky Tonight

November 25, 2014

Rapidly Freezing Saltwater Could Provide Spark of Life on Icy Worlds
Moffett Field CA (SPX) Nov 26, 2014
A research team has confirmed the existence of a process that causes the electrolysis of water, and which has the potential to drive the production of life in "Snowball Earth" scenarios and on icy satellites such as Europa and Enceladus. The process, known as the Workman-Reynolds Effect (WRE), occurs when a dilute aqueous solution of salt rapidly freezes, causing ions in the solution to assume a negative or positive charge at the interface between ice and water. Travis A. Johnson, a geoscien ... read more

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Young Volcanoes on the Moon Back in 1971, Apollo 15 astronauts orbiting the Moon photographed something very odd. Researchers called it "Ina," and it looked like the aftermath of a volcanic eruption. There's nothing odd about ... more		How Can We Search For Life On Icy Moons Such As Europa? Our solar system is host to a wealth of icy worlds that may have water beneath the surface. The Cassini spacecraft recently uncovered evidence of a possible ocean under the surface of Saturn's moon, ... more		ASU joins pathbreaking radio telescope project to study early universe Arizona State University has joined with 14 other institutions in Australia, India, New Zealand and the United States in a radio telescope project that focuses on the early universe and the birth an ... more
				Hot, Super-Earths Help Track Water-Rich Atmospheres As the discovery of planets beyond the Solar System becomes more common, scientists have begun the in-depth study of the atmospheres of these bodies. In a new paper, a pair of astronomers inve ... more		Extreme Shrimp May Hold Clues to Alien Life At one of the world's deepest undersea hydrothermal vents, tiny shrimp are piled on top of each other, layer upon layer, crawling on rock chimneys that spew hot water. Bacteria, inside the shrimps' ... more

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Subaru detects sudden appearance of galaxies in early universe A team of astronomers using the Subaru Telescope's Suprime-Cam to perform the Subaru Ultra-Deep Survey for Lyman-alpha Emitters have looked back more than 13 billion years to find 7 early galaxies t ... more		Asteroid Mining Could Make For Boom Times NASA has concluded contracts with two private-sector enterprises, intending to develop practical approaches to asteroid mining, encouraged by the successful comet landing earlier this month, as such ... more		India signs $7 bn deal for 97 domestically made fighter jets France doubles down on threat to build future fighter jet alone US approves $1.2 bn missile sale to Germany		Rosetta Comet Landing in 'Thud' and 3D A 3D image shows what it would look like to fly over the surface of comet 67P/Churyumov-Gerasimenko. The image was generated from data collected by the Rosetta Lander Imaging System (ROLIS) aboard t ... more
				NASA Issues 'Remastered' View of Jupiter's Moon Europa Scientists have produced a new version of what is perhaps NASA's best view of Jupiter's ice-covered moon, Europa. The mosaic of color images was obtained in the late 1990s by NASA's Galileo spacecra ... more		Sun's rotating magnetic field may pull lightning toward Earth The push and pull of the sun's magnetic field may encourage lightning strikes by bending the Earth's own magnetic field, allowing an influx of electric particles. Over a five-year period, researchers at the University of Reading recorded a 50 percent increase in lightning strikes when the Earth's magnetic shield was manipulated by the sun. ... more

Startup in the Land of the Rising Sun; A Japanese Solar Venture - by Bradley L. Bartz

NASA contracts two firms to work on asteroid mining NASA has contracted with two private space firms to prepare for and ultimately execute missions to land on and mine asteroids for valuable resources. The contracts, forged between NASA and both Deep Space Industries and Planetary Resources, are further evidence of a the kinds of new and interesting partnerships as space exploration increasingly becomes the domain of private industry. ... more		Swift Marks 10 Years of Game-changing Astrophysics Over the past decade, NASA's Swift Gamma-ray Burst Explorer has proven itself to be one of the most versatile astrophysics missions ever flown. It remains the only satellite capable of precisely loc ... more		Simulations of Exoplanet Formation May Help Inform Search for Extraterrestrial Life Ancient hot springs reveal how microbes thrived before Earth gained oxygen Framework proposed to study planetary scale impact of life		Sun's rotating 'magnet' pulls lightning towards UK The Sun may be playing a part in the generation of lightning strikes on Earth by temporarily 'bending' the Earth's magnetic field and allowing a shower of energetic particles to enter the upper atmo ... more
How to estimate the magnetic field of an exoplanet? Scientists developed a new method which allows to estimate the magnetic field of a distant exoplanet, i.e., a planet, which is located outside the Solar system and orbits a different star. Moreover, ... more		It's filamentary: How galaxies evolve in the cosmic web How do galaxies like our Milky Way form, and just how do they evolve? Are galaxies affected by their surrounding environment? An international team of researchers, led by astronomers at the Universi ... more		The riddle of the missing stars Thanks to the NASA/ESA Hubble Space Telescope, some of the most mysterious cosmic residents have just become even more puzzling. New observations of globular clusters in a small galaxy show they are ... more		Scientists get to the heart of fool's gold as a solar material As the installation of photovoltaic solar cells continues to accelerate, scientists are looking for inexpensive materials beyond the traditional silicon that can efficiently convert sunlight into el ... more

	Unravelling the mystery of gamma-ray bursts A team of scientists hope to trace the origins of gamma-ray bursts with the aid of giant space 'microphones'. Researchers at Cardiff University are trying to work out the possible sounds scientists ... more		Spooky alignment of quasars across billions of light-years Quasars are galaxies with very active supermassive black holes at their centres. These black holes are surrounded by spinning discs of extremely hot material that is often spewed out in long jets al ... more

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