Mystery behind the origin of cosmic rays unravelled
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An international team of astronomers has succeeded in solving the 100 year-old mystery about the origin of the cosmic rays by producing the first ever image of an astronomical object using high energy gamma rays.
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NASA's Chandra X-ray Observatory has revealed an X-ray jet blasting away from a neutron star in a binary system. This discovery may help astronomers understand how neutron stars as well as black holes can generate powerful beams of relativistic particles.
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A pair of miniscule meteorite grains has helped astronomers settle a long-running debate on the origins of space dust belched out by dying stars.
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Europe's Planck satellite will study relic radiation from the Big Bang to answer deep questions about the origin of the Universe.
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For the very first time, astronomers have witnessed the speeding up of an asteroid's rotation, and have shown that it is due to a theoretical effect predicted but never seen before.
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One of the great mysteries for astronomers is why our Sun's surface is so much hotter than its core. The counterintuitive answer, according to a suite of solar observatories, hinges on the Sun's tangled magnetic field and deep, fiery waves...
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The mysterious origins of cosmic rays that slam into the Earth's atmosphere could soon be revealed, thanks to a better ground-based sensor that costs less than balloons or satellites.
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Scientists believe they have tracked down the origin of a low-frequency "hum" that emanates from the Earth.
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Evidence is found to tie the structure of the Universe to ripples in the density of matter at the dawn of time.
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The Genesis desert crash has left scientists wondering about the delicate condition of its solar wind collection. The first release of samples to the community has begun, while new tests for oxygen-isotopes may help uncover which particles might have lunar, solar or terrestrial origins.
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In 1967, NASA's Mariner 4 spacecraft was hit by a surprising flurry of meteoroids--a shower more intense than any Leonid meteor storm.  Where did the meteoroids come from? It's been a mystery for 40 years.
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The astronomers uncovered evidence about the origin of the universe and how it grew into galaxies.
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Astronomers say they may have detected the light from some of the earliest stars to form in the Universe.
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By Barry, Patrick Finding a single heavy antimatter nucleus could revolutionize cosmology When summer comes to Antarctica this December, a group of physicists there will launch an enormous balloon carrying a scientific instrument through Earth's atmosphere to the edge of space.
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Recent observations have uncovered evidence that helps to confirm the identification of the remains of one of the earliest stellar explosions recorded by humans. The new study shows that the supernova remnant RCW 86 is much younger than previously thought.
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An expedition of Russian researchers claims to have found evidence that an    alien spaceship had something to do with a huge explosion over Siberia in 1908.    Experts in asteroids and comets have long said the massive blast was caused    by a space rock.
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Astronomers say they have found some of the earliest galaxies, which will help to piece together the history of the early universe. Some suspect galaxies took longer to form than previously thought. By John Gartner.