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Latest Space weathering Stories

Asteroid Fragments May Give Insight Into Origins Of Planets
2012-10-05 13:38:38

Alan McStravick for redOrbit.com - Your Universe Online The year was 1998. The Red Hot Chili Peppers had just parted ways with Dave Navarro. The world was introduced to Britney Spears. And the movie Armageddon bested all other films at the box office. It seems fitting that the same year that gave us Michael Bay´s fictional interpretation of how we should deal with an asteroid coming towards us would be the same year that the Lincoln Near-Earth Asteroid Research (LINEAR) project...

First Evidence Of Space Weathering Found On Comet Wild2
2012-03-27 09:44:24

The traditional picture of comets as cold, icy, unchanging bodies throughout their history is being reappraised in the light of analyses of dust grains from Comet Wild2. A team led by the University of Leicester has detected the presence of iron in a dust grain, evidence of space weathering that could explain the rusty reddish colour of Wild2´s outer surface. The results will be presented by Dr John Bridges at the National Astronomy Meeting in Manchester on Tuesday 27th March. The...

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2011-08-26 10:54:30

  Japanese scientists have determined that the most common meteorites found on Earth are born from stony asteroids. The Earth-bound asteroids, also known as ordinary chondrites, are among the most primitive objects in the solar system.  The researchers said that the discovery means these asteroids have been recording a long and rich history of early solar system events. Japan Aerospace Exploration Agency (JAXA) launched the Hayabusa spacecraft in 2003 to sample the surface...

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2011-06-01 08:57:18

Mercury and its environment constitute a complex system that includes interactions among the interplanetary medium, the planet's magnetic field, its tenuous atmosphere (or exosphere), and its surface. Mercury's environment includes the solar wind and photon flux (flowing charged particles and light), solar and galactic cosmic rays, and the steady bombardment by micrometeoroids (solar system dust particles). The interactions of these elements of the space environment with the surface generate...

2009-04-23 13:31:44

A European Space Agency-led team of astronomers has determined the rapid space weathering seen on asteroid surfaces is most likely caused by the solar wind. The study led by ESA scientist Pierre Vernazza reveals that solar wind ages and reddens asteroid surfaces much more quickly than previously thought -- in less than a million years. The scientists said their finding will help astronomers relate the appearance of an asteroid to its actual history and identify any after effects of a...

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2009-04-22 12:53:34

A new study published in Nature this week reveals that asteroid surfaces age and redden much faster than previously thought "” in less than a million years, the blink of an eye for an asteroid. This study has finally confirmed that the solar wind is the most likely cause of very rapid space weathering in asteroids. This fundamental result will help astronomers relate the appearance of an asteroid to its actual history and identify any after effects of a catastrophic impact with another...

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2006-09-08 12:25:00

PROVIDENCE, R.I. -- Asteroids and meteorites are supposed to be made of the same stuff "“ at least that's what earth science teachers have been telling their students for decades. But until re-cently, the data didn't quite fit the story. When researchers compared the near-infrared reflec-tance of asteroids (as measured from Earth) and meteorites (collected on Earth) they found enough differences to raise doubts about whether the asteroids really could be the source of Earth's...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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