Astronomy News & Research
|Approximately every 11 years, the sun undergoes a complete personality change from quiet and calm to violently active. The height of the sun's activity, known as solar maximum, is a time of numerous sunspots, punctuated with profound eruptions that send radiation and solar particles out into the far reaches of space. ...> Full Article|
|An international team of astronomers has defined the contours of the immense supercluster of galaxies containing our own Milky Way. They have named the supercluster 'Laniakea,' meaning 'immense heaven' in Hawaiian. ...> Full Article|
|Astronomers using the Green Bank Telescope -- among other telescopes -- have determined that our own Milky Way galaxy is part of a newly identified ginormous supercluster of galaxies, which they have dubbed 'Laniakea,' which means 'immense heaven' in Hawaiian. ...> Full Article|
|Lupus 4, a spider-shaped blob of gas and dust, blots out background stars like a dark cloud on a moonless night in this intriguing new image. Although gloomy for now, dense pockets of material within clouds such as Lupus 4 are where new stars form and where they will later burst into radiant life. The Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile captured this new picture. ...> Full Article|
Magnetic substorms, the disruptions in geomagnetic activity that cause brightening of aurora, may sometimes be driven by a different process than generally thought, a new study in the Journal of Geophysical Research: Space Physics shows.
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|The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists at UC Santa Cruz. Their results show that even stars that don't stay together in a cluster will share a chemical fingerprint with their siblings which can be used to trace them to the same birthplace. ...> Full Article|
Researchers in Georgia State University's new Astroinformatics program have been awarded $1.5 million from the National Science Foundation to develop software tools that can process large sets of solar astronomy data and allow scientists to perform analyses on scales and detail levels that have not been possible.
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|A group of Russian astrophysicists, including researchers from Moscow Institute of Physics and Technology, have detected the formation of radioactive cobalt during a supernova explosion, lending credence to a corresponding theory of supernova explosions. ...> Full Article|
A worldwide network of radio telescopes measured the distance to the famous star cluster the Pleiades to an accuracy within 1 percent. The result resolved a controversy raised by a satellite's measurement that now is shown to be wrong. The incorrect measurement had challenged standard models of star formation and evolution.
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|Scientists found that the CME contained a rare piece of dense solar filament material. This filament coupled with an unusually fast speed led to the large amount of solar material observed. ...> Full Article|
|Astronomers using the National Science Foundation's Green Bank Telescope have discovered that filaments of star-forming gas near the Orion Nebula may be brimming with pebble-size particles -- planetary building blocks 100 to 1,000 times larger than the dust grains typically found around protostars. ...> Full Article|
Was Mars -- now a cold, dry place -- once a warm, wet planet that sustained life? Research underway at the National High Magnetic Field Laboratory may one day answer those questions -- and perhaps even help pave the way for future colonization of the Red Planet. By analyzing the chemical clues locked inside an ancient Martian meteorite known as Black Beauty, Florida State University Professor Munir Humayun and an international research team are revealing the story of Mars' ancient, and sometimes startling, climate history.
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|New research from UCL shows we will soon uncover the origin of the ultraviolet light that bathes the cosmos, helping scientists understand how galaxies were built.
The study published today in the Astrophysical Journal Letters by UCL cosmologists Dr. Andrew Pontzen and Dr. Hiranya Peiris, together with collaborators at Princeton and Barcelona universities, shows how forthcoming astronomical surveys will reveal what lit up the cosmos. ...> Full Article|
|Using the NASA/ESA Hubble Space Telescope and many other telescopes, an international team of astronomers has obtained the best view yet of a collision that took place between two galaxies when the Universe was half its current age. They enlisted the help of a galaxy-sized magnifying glass to reveal otherwise invisible detail. These new studies of the galaxy H-ATLAS J142935.3-002836 have shown that this distant object looks like the local galaxy collision, the Antennae Galaxies. ...> Full Article|
|The field of astrophysics has a stubborn problem and it's called lithium. The quantities of lithium predicted to have resulted from the Big Bang are not actually present in stars. But the calculations are correct -- a fact which has now been confirmed for the first time in experiments conducted at the underground laboratory in the Gran Sasso mountain in Italy. As part of an international team, researchers from the Helmholtz-Zentrum Dresden-Rossendorf studied how much lithium forms under Big Bang conditions. ...> Full Article||