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  • Supercooled clouds form stunning ice kingdoms atop mountains
    Direction of polar jet Feb 04 2016 Why does the heat in the atmosphere mostly go down Feb 03 2016 Hurricane reduction through ocean surface cooling Jan 30 2016 More from Earth Related Stories 231 mph NH wind gust is no longer world s fastest January 26 2010 AP First the Old Man now the Big Wind New Hampshire s Mount Washington has lost its distinction as the site of the fastest wind gust ever recorded on Earth officials at the Mount Washington Observatory said Tuesday New high speed camera system reveals what snow looks like in midair April 10 2013 University of Utah researchers developed a high speed camera system that spent the past two winters photographing snowflakes in 3 D as they fell and they don t look much like those perfect but rare snowflakes often seen Recommended for you MyShake New app turns smartphones into worldwide seismic network February 12 2016 University of California Berkeley scientists are releasing a free Android app that taps a smartphone s ability to record ground shaking from an earthquake with the goal of creating a worldwide seismic detection network Catastrophic failure of ice age dam changed ocean circulation and climate February 12 2016 The catastrophic release of fresh water from a vast South American lake at the end of the last Ice Age was significant enough to change circulation in the Pacific Ocean according to new research co authored by a PhD student Poor air quality kills 5 5 million worldwide annually February 12 2016 New research shows that more than 5 5 million people die prematurely every year due to household and outdoor air pollution More than half of deaths occur in two of the world s fastest growing economies China and India Long term picture offers little solace on

    Original URL path: http://phys.org/news/2015-11-supercooled-clouds-stunning-ice-kingdoms.html (2016-02-13)
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  • Phys.org - rocky planets
    to discover patterns and features that indicate what types of planets are likely to form around different kinds of stars Dec 03 2015 in Astronomy 29 2 In 40 million years Mars may have a ring and one fewer moon Nothing lasts forever especially Phobos one of the two small moons orbiting Mars The moonlet is spiraling closer and closer to the Red Planet on its way toward an inevitable collision with its host But a new study suggests Nov 24 2015 in Space Exploration 940 6 Venus twin Earth sized rocky planet orbiting a nearby star Scientists have discovered a new exoplanet that in the language of Star Wars would be the polar opposite of frigid Hoth and even more inhospitable than the deserts of Tatooine But instead of residing in a galaxy far Nov 11 2015 in Astronomy 751 6 Cosmic Death Star is destroying a planet The Death Star of the movie Star Wars may be fictional but planetary destruction is real Astronomers announced today that they have spotted a large rocky object disintegrating in its death spiral around a distant white Oct 21 2015 in Astronomy 1292 1 The minimum mass of a proto solar system disk Astronomers estimate that at the time the Solar system formed its proto planetary disk contained the equivalent of about twenty Jupiter masses of gas and dust This so called minimum mass solar nebula MMSN is derived Oct 19 2015 in Astronomy 906 1 Rocky planets may be habitable depending on their air conditioning system The quest for potentially habitable planets is often interpreted as the search for an Earth twin And yet some rocky planets outside our Solar System may in fact be more promising candidates for further research Scientists Sep 14 2015 in Astronomy 86 0 Novel technique

    Original URL path: http://phys.org/tags/rocky+planets/ (2016-02-13)
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  • Phys.org - dwarf planets
    solar system orbiting between the Sun and Mercury Jan 21 2016 in Astronomy 1454 22 Nearby star hosts closest alien planet in the habitable zone UNSW Australia astronomers have discovered the closest potentially habitable planet found outside our solar system so far orbiting a star just 14 light years away Dec 16 2015 in Astronomy 1199 15 Monster planet is dancing with the stars A team made up almost entirely of current and former Carnegie scientists has discovered a highly unusual planetary system comprised of a Sun like star a dwarf star and an enormous planet sandwiched in between Dec 16 2015 in Astronomy 200 2 Meanwhile in a galaxy not so far far away The fantasy creations of the Star Wars universe are strikingly similar to real planets in our own Milky Way galaxy A super Earth in deep freeze Think ice planet Hoth And that distant world with double sunsets can t Dec 16 2015 in Astronomy 730 0 New clues to Ceres bright spots and origins Ceres reveals some of its well kept secrets in two new studies in the journal Nature thanks to data from NASA s Dawn spacecraft They include highly anticipated insights about mysterious bright features found all over the Dec 09 2015 in Space Exploration 1173 25 Neil deGrasse Tyson weighs in on New Horizons Pluto discoveries The New Horizons spacecraft completed its 3 billion mile journey to Pluto in July and the discoveries continue to pour in every week as NASA scientists receive and analyze data and images from the flyby It will be another Nov 19 2015 in Space Exploration 65 9 Radiation blasts leave most Earth like planet uninhabitable The most Earth like planet could have been made uninhabitable by vast quantities of radiation new research led by the University

    Original URL path: http://phys.org/tags/dwarf+planets/ (2016-02-13)
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  • Phys.org - planets
    40 0 The long hunt for new objects in our expanding solar system Recognise these planet names Vulcan Neptune Pluto Nemesis Tyche and Planet X They all have one thing in common their existence was predicted to account for unexplained phenomena in our solar system Feb 04 2016 in Space Exploration 28 0 New study challenges Jupiter s role as planetary shield protecting Earth from comet impacts Not only is the Jupiter as shield concept implying that the planet shields Earth from comet impacts not true but perhaps Jupiter s most important role in fostering the development of life on Earth was just the opposite delivering Feb 03 2016 in Astronomy 201 1 ESA image Treemetrics woodland laser scan A commercial forest seen through the eyes of a 3D laser scanning system developed by the ESA supported Treemetrics company Feb 03 2016 in Engineering 51 0 Ceres Keeping well guarded secrets for 215 years New Year s Day 1801 the dawn of the 19th century was a historic moment for astronomy and for a space mission called Dawn more than 200 years later That night Giuseppe Piazzi pointed his telescope at the sky and observed Jan 26 2016 in Space Exploration 663 2 1 2 3 4 5 6 7 8 Next Planet A planet from Greek πλαν της from the verb πλαν μαι plan mai I wander is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity is not massive enough to cause thermonuclear fusion and has cleared its neighbouring region of planetesimals a The term planet is ancient with ties to history science myth and religion The planets were originally seen by many early cultures as divine or as emissaries of the gods Even today many people believe in astrology which holds that the movement of the planets affects people s lives although such a causation is rejected by the scientific community As scientific knowledge advanced human perception of the planets changed incorporating a number of disparate objects Even now there is no uncontested definition of what a planet is In 2006 the IAU officially adopted a resolution defining planets within the Solar System This definition has been both praised and criticized and remains disputed by some scientists The planets were thought by Ptolemy to orbit the Earth in deferent and epicycle motions Though the idea that the planets orbited the Sun had been suggested many times it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations performed by Galileo Galilei By careful analysis of the observation data Johannes Kepler found the planets orbits to be not circular but elliptical As observational tools improved astronomers saw that like Earth the planets rotated around tilted axes and some share such features as ice caps and seasons Since the dawn of the Space Age close observation by probes has found that Earth and the other planets share characteristics such

    Original URL path: http://phys.org/tags/planets/ (2016-02-13)
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  • New instrument reveals recipe for other Earths
    2014 To paraphrase Mark Twain the report of the Kepler spacecraft s death was greatly exaggerated Despite a malfunction that ended its primary mission in May 2013 Kepler is still alive and working The evidence comes from the Recommended for you Caught in the act Astronomers find a rare supernova impostor in a nearby galaxy February 12 2016 Breanna Binder a University of Washington postdoctoral researcher in the Department of Astronomy and lecturer in the School of STEM at UW Bothell spends her days pondering X rays When black holes meet inside the cataclysms that cause gravitational waves February 12 2016 It has long been predicted that when two black holes merge they ought to give out a staggering amount of energy in the form of gravitational waves Farewell Philae Earth says goodbye to comet probe Update 2 February 12 2016 Scientists gave up Friday trying to contact robot lab Philae stubbornly silent on the surface of a comet streaking through space closing a captivating chapter in an historic quest Saturn and Enceladus produce the same amount of plasma February 12 2016 The first evidence that Saturn s upper atmosphere may when buffeted by the solar wind emit the same total amount of mass per second into its magnetosphere as its moon Enceladus has been found by UCL scientists working Gravitational waves found black hole models led the way February 11 2016 Gravitational waves were predicted by Einstein s theory of general relativity in 1916 and now almost exactly 100 years later the faint ripples across space time have been found The advanced Laser Interferometric Gravitational wave The glitching of the Vela pulsar February 9 2016 Phys org A team of Australian astronomers has conducted an intensive observation of a curious young pulsar to investigate changes in its rotation frequency known as glitching Located about 910 light years from the 9 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first metingunduz not rated yet Jan 06 2015 Well several absolutely necessary ingredients missing from the recipe obviously The first necessary ingredient is habitability with the existence of effective protective magnetosphere against cosmic radiation without that you are doomed to perish at no time at that planet just a matter of very short time indeed for any life form to disappear under strong cosmic radiation What it means you have to have liquid magma inside as well as volcanic activity so the liquid iron and nickel like magnet forming elements will be able to create strong magnetic field MAGNETOSPHERE around that planet with the help of strong magnetism coming from the nuclear fusion reactions of central star of that planet so the deadly charged cosmic radiation coming from central star will be effectively shielded metingunduz not rated yet Jan 06 2015 Without this protective shields existence in any planetary body in our universe is doomed to be inhabitable for any life form regardless of existence of other so called ingredients as well as liquid water

    Original URL path: http://phys.org/news/2015-01-instrument-reveals-recipe-earths.html (2016-02-13)
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  • Phys.org - Astrophysical Journal
    the same three layers Feb 08 2016 in Astronomy 2944 7 Giant gas cloud boomeranging back into Milky Way Since astronomers discovered the Smith Cloud a giant gas cloud plummeting toward the Milky Way they have been unable to determine its composition which would hold clues as to its origin University of Notre Dame astrophysicist Jan 28 2016 in Astronomy 1756 4 Astrophysicists use new methods to simulate the common envelope phase of binary stars When we look at the night sky we see stars as tiny points of light eking out a solitary existence at immense distances from Earth But appearances are deceptive More than half the stars we know of have a companion a second Feb 04 2016 in Astronomy 12 0 A Milky Way twin swept by an ultra fast X ray wind ESA s XMM Newton has found a wind of high speed gas streaming from the centre of a bright spiral galaxy like our own that may be reducing its ability to produce new stars Jan 14 2016 in Astronomy 2054 6 Researchers quantify unidentified gamma ray sources In 2011 Francesco Massaro a researcher at the University of Turin Italy and Raffaele D Abrusco a post doc in the astrophysics group at the University Federico II of Naples Italy using all sky data produced by the Feb 02 2016 in Astronomy 51 0 Astronomers discover a tenth transiting Tatooine Astronomers at the 29th International Astronomical Union General Assembly will announce on August 14 the discovery of a new transiting circumbinary planet bringing the number of such known planets into double digits A Aug 07 2015 in Astronomy 2546 2 Astrophysicists find supermassive black holes in quasar nearest Earth Astronomers using NASA s Hubble Space Telescope have found that Markarian 231 Mrk 231 the nearest galaxy

    Original URL path: http://phys.org/journals/astrophysical-journal/ (2016-02-13)
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  • Phys.org - Harvard-Smithsonian Center for Astrophysics
    conventional Feb 08 2016 in Astronomy 58 1 Theorists propose a new method to probe the beginning of the universe How did the universe begin And what came before the Big Bang Cosmologists have asked these questions ever since discovering that our universe is expanding The answers aren t easy to determine The beginning of the cosmos Jan 25 2016 in Astronomy 3590 75 Cosmic Death Star is destroying a planet The Death Star of the movie Star Wars may be fictional but planetary destruction is real Astronomers announced today that they have spotted a large rocky object disintegrating in its death spiral around a distant white Oct 21 2015 in Astronomy 1292 1 Event Horizon Telescope reveals magnetic fields at Milky Way s central black hole Most people think of black holes as giant vacuum cleaners sucking in everything that gets too close But the supermassive black holes at the centers of galaxies are more like cosmic engines converting energy from infalling Dec 03 2015 in Astronomy 15258 36 VERITAS detects gamma rays from galaxy halfway across the visible universe In April 2015 after traveling for about half the age of the universe a flood of powerful gamma rays from a distant galaxy slammed into Earth s atmosphere That torrent generated a cascade of light a shower that fell onto Dec 15 2015 in Astronomy 2953 32 The properties of pre stellar cores Stars like the Sun begin their lives as cold dense cores of dust and gas that collapse under the influence of gravity until nuclear fusion is ignited These cores contain hundreds to thousands of solar masses of material Jan 18 2016 in Astronomy 1099 10 Searching for orbiting companion stars The search for exoplanets via the radial velocity technique has been underway for nearly 30 years

    Original URL path: http://phys.org/partners/harvard-smithsonian-center-for-astrophysics/ (2016-02-13)
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  • Earth-like planets have Earth-like interiors
    Model PREM which is the standard model for Earth s interior They adjusted it to accommodate different masses and compositions and applied it to six known rocky exoplanets with well measured masses and physical sizes They found that the other planets despite their differences from Earth all should have a nickel iron core containing about 30 percent of the planet s mass In comparison about a third of the Earth s mass is in its core The remainder of each planet would be mantle and crust just as with Earth We ve only understood the Earth s structure for the past hundred years Now we can calculate the structures of planets orbiting other stars even though we can t visit them adds Zeng The new code also can be applied to smaller icier worlds like the moons and dwarf planets in the outer solar system For example by plugging in the mass and size of Pluto the team finds that Pluto is about one third ice mostly water ice but also ammonia and methane ices The model assumes that distant exoplanets have chemical compositions similar to Earth This is reasonable based on the relevant abundances of key chemical elements like

    Original URL path: http://phys.org/print374152050.html (2016-02-13)
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