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October 09, 2014

New Dark Matter Theory Solves Milky Way's "Missing Satellite-Galaxies" Puzzle



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A new measurement of dark matter in the Milky Way has revealed there is half as much of the mysterious substance as previously thought. Australian astronomers probed the edge of the Milky Way, looking closely, for the first time, at the fringes of the galaxy about 5 million billion kilometres from Earth using a method developed almost 100 years ago. They  discovered that the weight of dark matter in our own galaxy is 800 000 000 000 (or 8 x 1011) times the mass of the Sun.

Continue reading "New Dark Matter Theory Solves Milky Way's "Missing Satellite-Galaxies" Puzzle" »


First Ultraluminous Pulsar Ever Detected --"Extreme X Ray Source in Cigar Galaxy was Thought to be a Black Hole"

 

 

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"We've never seen a pulsar even close to being this bright," says Dom Walton, a postdoctoral scholar at Caltech. "Honestly, we don't know how this happens, and theorists will be chewing on it for a long time." Besides being weird, the finding will help scientists better understand a class of very bright X-ray sources, called ultraluminous X-ray sources (ULXs).

Continue reading "First Ultraluminous Pulsar Ever Detected --"Extreme X Ray Source in Cigar Galaxy was Thought to be a Black Hole"" »


Discovery of New Particle will "Transform Our Understanding of Fundamental Force of Nature"

 

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Led by scientists from the University of Warwick, the discovery of the new particle will help provide greater understanding of the strong interaction, the fundamental force of nature found within the protons of an atom's nucleus. Poetically named Ds3*(2860)ˉ, the particle, a new type of meson, was discovered by analysing data collected with the LHCb detector at CERN's Large Hadron Collider (LHC).

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The 'Daily Galaxy' Twitter Followers Soar Above 300,000!

 

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Join the 319,000 Daily Galaxy fans around the world who follow us via their Twitter page. Our followers include many of the planet's leading astronomers and scientists, astronauts, space observatories, news organizations, universities and governmental space organizations such as NASA, JPL, ESO, SETI, Harvard-Smithsonian Center for Astrophysics (CfA) and Royal Astronomy Society members. Follow us daily at twitter.com/dailygalaxy.


October 08, 2014

“6EQUJ5" --The Cosmic Signal That Might Have Changed Human Civilization

 

 

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August 15, 1977: the night before Elvis Presley died, at 11:16 p.m. an Ohio radio telescope -a rectangular structure, larger than three football feilds- called the Big Ear recorded a single pulse of radiation that seemed to come from somewhere in the constellation of Sagittarius at the 1420 MHz hydrogen line, the vibration frequency of hydrogen, the most common molecule in the universe -exactly the signal ET-hunters had been instructed to look out for. The signal was so strong that it pushed the Big Ear's recording device off the chart.

Continue reading "“6EQUJ5" --The Cosmic Signal That Might Have Changed Human Civilization" »


Strange Red Supergiant-Neutron Star Object Discovered (Today's Most Popular)

 

 

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In a discovery decades in the making, scientists have detected the first of a “theoretical” class of stars first proposed in 1975 by physicist Kip Thorne and astronomer Anna Żytkow. Thorne-Żytkow objects (TŻOs) are hybrids of red supergiant and neutron stars that superficially resemble normal red supergiants, such as Betelgeuse in the constellation Orion. They differ, however, in their distinct chemical signatures that result from unique activity in their stellar interiors.

Continue reading "Strange Red Supergiant-Neutron Star Object Discovered (Today's Most Popular)" »


October 07, 2014

Earth's Orbit Through the Milky Way --"A Perilous 3-Dimensional Journey" (Today's Most Popular)

 

 

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It’s clear that our view of the cosmos is highly constrained. 1n 1999, Astronomers focusing on a star at the center of the Milky Way, measured precisely how long it takes the sun to complete one orbit (a galactic year) of our home galaxy: 226 million years. The last time the sun was at that exact spot of its galactic orbit, dinosaurs ruled the world. The Solar System is thought to have completed about 20–25 orbits during its lifetime or 0.0008 orbit since the origin of humans. When the last red embers of our Sun die out billions of years from now, we will have completed approximately 60 orbits of our home galaxy.

Continue reading "Earth's Orbit Through the Milky Way --"A Perilous 3-Dimensional Journey" (Today's Most Popular)" »


"True Nature of Dark Matter at Galactic Scales Detected"

 

 

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The universe is considered to be filled with dark matter, which cannot be observed by ordinary light. Although much evidence supports the existence of dark matter, it has yet to be directly detected and its nature is not understood.

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October 06, 2014

Massive New NOvA Accelerator --"Unravel Mystery of Why Matter in Universe Wasn't Annihilated After Big Bang"

 

 

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Scientists believe that a better understanding of neutrinos, one of the most abundant and difficult-to-study particles, may lead to a clearer picture of the origins of matter and the inner workings of the universe. Using the world’s most powerful beam of neutrinos , generated at the U.S. Department of Energy’s Fermi National Accelerator Laboratory near Chicago, the NOvA experiment can precisely record the telltale traces of those rare instances when one of these ghostly particles interacts with matter.

Continue reading "Massive New NOvA Accelerator --"Unravel Mystery of Why Matter in Universe Wasn't Annihilated After Big Bang"" »


"ATTEMPT NO LANDING THERE" --New NASA Mission to Europa will Ignore Arthur C Clarke's Warning (Today's Most Popular)

 

 

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NASA is ignoring Arthur C Clarke's warning to avoid exploring Juipter's moon, Europa. In 2010: Odyssey Two, a 1982 the science fiction novel by Arthur C. Clarke, the Earth mission returns to the Jupiter system to explore beneath the ice of Europa, nine years after the failure of the Discovery One mission. As Jupiter is about to transform into a new star, Lucifer, David Bowman returns to Discovery to give HAL a last order to carry out. HAL begins repeatedly broadcasting the message: ALL THESE WORLDS ARE YOURS EXCEPT EUROPA ATTEMPT NO LANDING THERE. The space agency has announced funding early development of an unusual mission to Europa as it looks toward future space exploration of planets and moons that may contain both water and extraterrestrial life.

Continue reading ""ATTEMPT NO LANDING THERE" --New NASA Mission to Europa will Ignore Arthur C Clarke's Warning (Today's Most Popular)" »




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