The Sky Tonight

August 11, 2015

Gravitational Constant appears universally constant, Pulsar study suggests
Washington DC (SPX) Aug 10, 2015
Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the Universe, according to a decades-long study of a distant pulsar. This research helps to answer a long-standing question in cosmology: Is the force of gravity the same everywhere and at all times? The answer, so far, appears to be yes. Astronomers using the National Science Foundation's (NSF) Green Bank Telescope (GBT) in West Virginia and its Arecibo Observatory in Puerto Rico conducted a 21-year study ... read more

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Sorting through thickets of stars in elliptical galaxies far, far away A Yale University astronomer has helped untangle the cosmic knots of stars at the center of giant, elliptical galaxies. Two studies, one led by Yale's Grant Tremblay and other led by Michigan ... more		Hubble finds evidence of galaxy star birth regulated by black-hole fountain Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth. NASA's Hubble Space Telescope's exquis ... more		Saturn's rings in a supercomputer Why some planets, like Saturn or Jupiter, have their rings, while others like, the Earth or Mars do not? It turned out that "the size does not matter" - not only giants as Saturn possess the rings, ... more
				Sunspot history suggests recent climate change not due to solar trends The Maunder Minimum, between 1645 and 1715, when sunspots were scarce and the winters harsh, strongly suggests a link between solar activity and climate change. Until now there was a general consens ... more		Russia to conduct simulated flight program to Moon, Mars over 4 years Russia will conduct a series of international experiments with simulated flights to the Moon, Mars and other planets between 2016 and 2020, the first deputy head of the Institute of Biomedical Probl ... more

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Nuclear Decommissioning And Used Fuel Market 2015

Solar systems for home and business installations

Comet 67P, robot lab Philae's alien host, nears Sun A comet streaking through space with a European robot lab riding piggyback will skirt the Sun this week, setting another landmark in an extraordinary quest to unravel the origins of life on Earth. ... more		From a million miles away, NASA camera shows moon crossing face of Earth A NASA camera aboard the Deep Space Climate Observatory (DSCOVR) satellite captured a unique view of the moon as it moved in front of the sunlit side of Earth last month. The series of test images s ... more		U.S.military ramps up tech capabilities to improve effectiveness Maintaining US space dominance requires rapid and reliable delivery of new systems India signs $7 bn deal for 97 domestically made fighter jets		Milky Way-like galaxies may have existed in the early universe A new, large-scale computer simulation has shown for the first time that large disk galaxies, much like our own Milky Way, may have existed in the early days of the universe. The simulation, c ... more
				Scientists solve planetary ring riddle In a breakthrough study, an international team of scientists, including Professor Nikolai Brilliantov from the University of Leicester, has solved an age-old scientific riddle by discovering that pl ... more		The ghost of a dying star This extraordinary bubble, glowing like the ghost of a star in the haunting darkness of space, may appear supernatural and mysterious, but it is a familiar astronomical object: a planetary nebula, t ... more

Nuclear Operations and Maintenance Efficiency Summit USA 2015

New Study Sheds Light on Origin of Most Common Meteorites For decades astronomers debated the source of the most common type of meteorites that fall on Earth called H ordinary chondrites. A new study by researchers at the Planetary Science Institute sheds ... more		Caltech astronomers unveil a distant protogalaxy connected to the cosmic web A team of astronomers led by Caltech has discovered a giant swirling disk of gas 10 billion light-years away--a galaxy-in-the-making that is actively being fed cool primordial gas tracing back to th ... more		NASA ISRO radar satellite beams first Earth images from space Morocco High Atlas whistle language strives for survival Toxic homes a lasting legacy of Los Angeles fires		Celebrating a year at the comet ESA's Rosetta mission today celebrates one year at Comet 67P/Churyumov-Gerasimenko, with its closest approach to the Sun now just one week away. It's been a long but exciting journey for Rosetta sin ... more
Study: All planetary rings governed by particle distribution principle The rings of Saturn and Jupiter and those of satellites, planets and exoplanets all have something in common - the distribution of their ring particles is governed by the same mathematical law. ... more		Overselling NASA Let me give you another Earth. Yup, a whole new planet. Of course, there are conditions. We don't really know what the atmosphere is like. We're not totally sure about temperatures. Don't ask about ... more		Remnants of galaxy interactions uncovered in a nearby galaxy group Astronomers using the Subaru Telescope's Hyper Suprime-Cam prime-focus camera recently observed the nearby large spiral galaxy M81, together with its two brightest neighbors, M82 and NGC3077. The re ... more		Neutron stars strike back at black holes in jet contest Some neutron stars may rival black holes in their ability to accelerate powerful jets of material to nearly the speed of light, astronomers using the Karl G. Jansky Very Large Array (VLA) have disco ... more

	Jupiter's Great Red Spot: A Swirling Mystery The largest and most powerful hurricanes ever recorded on Earth spanned over 1,000 miles across with winds gusting up to around 200 mph. That's wide enough to stretch across nearly all U.S. states e ... more		Super star takes on black holes in jet contest A super-dense star formed in the aftermath of a supernova explosion is shooting out powerful jets of material into space, research suggests. In a new study, a team of scientists in the Australia and ... more

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Dutch lead charge on electric inland vessels

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Tracking A Mysterious Group of Asteroid Outcasts		Volcanic bacteria take minimalist approach to survival		Researchers Use 'Seafloor Gardens' to Switch on Light Bulb		World's quietest gas lets physicists hear faint quantum effects		First detection of lithium from an exploding star
Vatican sceptical about close encounters of the third kind		Exoplanets 20/20: Looking Back to the Future		Dawn gracefully descending into lower orbit above dwarf planet		NASA Selects Proposals to Study Neutron Stars, Black Holes and More		Scientists offer explanation for electron heat loss in fusion plasma

An exceptional planetary system discovered in Cassiopeia

York scientists unlock secrets of stars through aluminium

Earth Flyby of 'Space Peanut' Captured in New Video

Stars in Our Galaxy Move Far From Home

Binary Star System Precisely Timed with Pulsar's Gamma-rays

'Failed stars' host powerful auroral displays

Microlensing used to find distant Uranus-sized planet

Science on the surface of a comet

Philae results shed light on the nature of comets

NASA's Spitzer Confirms Closest Rocky Exoplanet

Stormy seas in Sagittarius

Philae the little lost lander finds organic molecules on comet

New Names and Insights at Ceres

Unusual Red Arcs Spotted on Icy Saturn Moon

Missouri researcher bakes asteroids to find water

A new litmus test for chaos?

Identifying ever-growing disturbances leading to freak waves

New 3-D model could solve supernova mystery

Dense star clusters shown to be binary black hole factories

Astronomers discover powerful aurora beyond solar system

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