Astronomers have discovered the fundamental process responsible for the smooth, steady fade of older disk galaxies. They say the key is the clumps of interstellar gases and new stars within young galaxy disks.
Sep 11th, 2013
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An important discovery has been made concerning the possible inventory of molecules available to the early Earth. Scientists found that the Sutter's Mill meteorite, which exploded in a blazing fireball over California last year, contains organic molecules not previously found in any meteorites. These findings suggest a far greater availability of extraterrestrial organic molecules than previously thought possible, an inventory that could indeed have been important in molecular evolution and life itself.
Sep 10th, 2013
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Water found in ancient Moon rocks might have actually originated from the proto-Earth and even survived the Moon-forming event.
Sep 10th, 2013
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An instrument similar to those used on Earth by art detectives and to sense explosives at airports will be taken into space for the first time by ExoMars, the European Space Agency's mission to Mars in 2018. This Raman spectrometer will help space scientists to hunt for traces of Martian life.
Sep 10th, 2013
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A novel, hybrid part-human, part-machine visual system that uses a simple mobile phone camera has been developed to search for evidence of past or present life in planetary analogue sites on Earth.
Sep 10th, 2013
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Unresolved questions about the nature of supermassive black holes, gravitational monsters at the heart of nearly all large galaxies, were at the forefront of a recent conference at the Kavli Institute for Theoretical Physics (KITP) at the University of California, Santa Barbara.
Sep 10th, 2013
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Mars rovers, such as Curiosity, currently can't make science decisions on their own. That has to change if future rover missions are to make discoveries further out in the solar system, scientists say. To help future rover missions spend less time waiting for instructions from Earth, scientists at the Jet Propulsion Laboratory in Pasadena, Calif., developed an advanced two-lens camera, called TextureCam, that can think about the pictures it snaps and make science-based decisions.
Sep 9th, 2013
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Heidelberg scientists develop theoretical model to interpret data from the Planck satellite.
Sep 9th, 2013
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The amount of sunlight being absorbed or reflected by Earth is one of the driving forces for weather and climate. Satellites are providing this information with unprecedented accuracy.
Sep 6th, 2013
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Exceptional structures deposited and shaped by water and winds adorn these interlocking craters and sculpt radiating patterns in the sands of Mars.
Sep 6th, 2013
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Astronomers discover how the image of a distant quasar splits into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as in the 1970s, but the first evidence for one now has come from observations performed with the telescope array VLBA and analysed in the Max Planck Institute for Radio Astronomy.
Sep 6th, 2013
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Astronomers using a worldwide network of radio telescopes have found strong evidence that a powerful jet of material propelled to nearly light speed by a galaxy's central black hole is blowing massive amounts of gas out of the galaxy. This process, they said, is limiting the growth of the black hole and the rate of star formation in the galaxy, and thus is a key to understanding how galaxies develop.
Sep 5th, 2013
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Scientists, including University of New Hampshire astrophysicists involved in NASA's Interstellar Boundary Explorer mission, have discovered that the particles streaming into the solar system from interstellar space have likely changed direction over the last 40 years.
Sep 5th, 2013
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Astronomers are constantly on the hunt for ever-colder star-like bodies, and two years ago a new class of such objects was discovered. However, until now no one has known exactly how cool their surfaces really are -- some evidence suggested they could be room temperature. A new study shows that while these brown dwarfs, sometimes called failed stars, are warmer than previously thought with temperatures about 250-350 degrees Fahrenheit.
Sep 5th, 2013
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Simulations predict safest path for rovers to travel.
Sep 5th, 2013
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How many different molecules can be created when you release one of the universe's most reactive substances, hydrogen cyanide, in the lab? And will the process create some particularly interesting molecules?
Sep 5th, 2013
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In 2012, Astronomy and Astrophysics published a statistical study of the isotopic records of solar activity, in which Abreu et al. claimed that there is evidence of planetary influence on solar activity. A+A is publishing a new analysis of these isotopic data by Cameron and Schuessler. It corrects technical errors in the statistical tests performed by Abreu et al. They find no evidence of any planetary effect on solar activity.
Sep 5th, 2013
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Multiple 'secret weapons' will be used on China's Chang'e-3 lunar probe, scheduled to launch at the end of this year for a moon landing mission, a key scientist said on Wednesday.
Sep 5th, 2013
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