Asteroid, Comet, Meteor News

• Saturn
  Solar System
  Astronomy
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  NASA Probe Observes Meteors Colliding With Saturn's Rings

  April 25, 2013 — NASA's Cassini spacecraft has provided the first direct evidence of small meteoroids breaking into streams of rubble and crashing into Saturn's rings. These observations make Saturn's rings the only ... > full story
• Geology
  Earth Science
  Climate
  Near-Earth Object Impacts
  Atmosphere
  Earthquakes
   
  

  Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows

  April 25, 2013 — The temperature near Earth's center is 6,000 degrees Celsius, 1,000 degrees more than given in an experiment 20 years ago. This experiment with synchrotron X-rays confirms geophysical models that ... > full story
• Caregiving
  Elder Care
  Stroke Prevention
  Stroke
  Heart Disease
  Brain Injury
   

  Teen Years May Be Critical in Later Stroke Risk

  April 24, 2013 — The teenage years may be a key period of vulnerability related to living in the "stroke belt" when it comes to future stroke risk, according to a new ... > full story
• Geology
  Earth Science
  Atmosphere
  Volcanoes
  Environmental Issues
  Geochemistry
   
  

  Ancient Earth Crust Stored in Deep Mantle

  April 24, 2013 — Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New ... > full story

  More: 

  • Unique Sulfur Isotopes in Plume Lavas Reveal Deep Mantle Storage of Archean Crust
• Extrasolar Planets
  Stars
  Kuiper Belt
  Pluto
  Astronomy
  Eris (Xena)
   
  

  Looking for Life by the Light of Dying Stars

  April 24, 2013 — Astronomers have now demonstrated that with the advanced technology available in the next decade we should be able to detect biomarkers like oxygen and methane in the planets that orbit dead stars ... > full story
• Climate
  Global Warming
  Ice Ages
  Caving
  Early Climate
  Earth Science
   
  

  Ice Tubes in Polar Seas -- 'Brinicles' or 'Sea Stalactites' -- Provide Clues to Origin of Life

  April 24, 2013 — Life on Earth may have originated not in warm tropical seas, but with weird tubes of ice -- sometimes called "sea stalactites" -- that grow downward into cold seawater near the Earth's poles, ... > full story
• Asteroids, Comets and Meteors
  Astronomy
  NASA
  Space Telescopes
  Space Exploration
  Sun
   
  

  Hubble Captures Comet ISON

  April 23, 2013 — When the Hubble picture of ISON was taken on April 10, the comet was slightly closer than Jupiter's orbit at a distance of 386 million miles from the Sun. Hubble photographed a jet blasting dust ... > full story
• Jupiter
  Asteroids, Comets and Meteors
  Astronomy
  Solar System
  Space Exploration
  Space Probes
   
  

  Jupiter's Atmosphere Still Contains Water Supplied by the Shoemaker-Levy 9 Comet Impact

  April 23, 2013 — Researchers are reporting Herschel observations of water in Jupiter's stratosphere. It is a clear remnant of the Shoemaker-Levy 9 comet impact on Jupiter nearly 20 years ... > full story
• Stars
  Nebulae
  Astronomy
  Extrasolar Planets
  Galaxies
  Black Holes
   
  

  Universality of Circular Polarization in Star And Planet-Forming Regions: Implications for the Origin of Homochirality of Life

  April 23, 2013 — A research team in Japan has performed deep imaging linear and circular polarimetry of the 'Cat's Paw Nebula' (NGC 6334) located in the constellation Scorpius, successfully detecting high degrees of ... > full story
• NASA
  Space Exploration
  Satellites
  Space Missions
  Space Station
  Space Probes
   
  

  NASA Successfully Launches Three Smartphone Satellites

  April 22, 2013 — Three smartphones destined to become low-cost satellites rode to space April 21, 2013 aboard the maiden flight of Orbital Science Corp.'s Antares rocket from NASA's Wallops Island Flight Facility in ... > full story

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