Evidence for more dust than ice in comets

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Ejecta plume from Tempel 1, 13 seconds after impact

Observations of Comet 9P/Tempel 1 made by ESA’s Rosetta spacecraft after the Deep Impact collision suggest that comets are ‘icy dirtballs’, rather than ‘dirty snowballs’ as previously believed.

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All News summaries from Space & Earth science news
All News summaries for October 13, 2005

Palm oil clearing swathes of forest in Indonesia's Papua: Greenpeace

58 minutes ago | User rating: not rated yet

Palm oil companies are clearing massive swathes of untouched forest in Indonesia's remote easternmost Papua region, environmental group Greenpeace said Friday.

Researchers Study Coastal Hazards of Increasing Wave Heights, Rising Sea Levels

2 hours ago | User rating: not rated yet

(PhysOrg.com) -- While hurricanes Gustav and Ike were pummeling the Gulf Coast with rains and record flooding, researchers at Oregon State University were studying why wave heights in the Pacific Ocean have been increasing ...

Scientists resolve long-standing puzzle in climate science

2 hours ago | User rating: not rated yet

(PhysOrg.com) -- A team led by Livermore scientists has helped reconcile the differences between simulated and observed temperature trends in the tropics.

Mars Odyssey Shifting Orbit for Extended Mission

2 hours ago | User rating: not rated yet

(PhysOrg.com) -- The longest-serving of six spacecraft now studying Mars is up to new tricks for a third two-year extension of its mission to examine the most Earthlike of known foreign planets.

Volcanic eruption signals simulated in lab for first time

2 hours ago | User rating: not rated yet

(PhysOrg.com) -- For the first time, seismic signals that precede a volcanic eruption have been simulated and visualized in 3-D under controlled pressure conditions in a laboratory. The ability to conduct such simulations ...

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