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12 December 2013 1:00 pm ,
Vol. 342 ,
Stefan Behnisch has won awards for designing science labs and other buildings that are smart, sustainable, and...
The iconic 125-year-old Lick Observatory on Mount Hamilton near San Jose, California, is facing the threat of closure...
Recent results from the Curiosity Mars rover have helped scientists formulate a plan for the next phase of its mission...
A new, remarkably powerful drug that cripples the hepatitis C virus (HCV) came to market last week, but it sells for $...
In pretoothbrush populations, gumlines would often be marred by a thick, visible crust of calcium phosphate, food...
Evolutionary biologists have long studied how the Mexican tetra, a drab fish that lives in rivers and creeks but has...
Victorian astronomers spent countless hours laboriously charting the positions of stars in the sky. Such sky mapping,...
In an ambitious project to study 1000 years of sickness and health, researchers are excavating the graveyard of the now...
- 12 December 2013 1:00 pm , Vol. 342 , #6164
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ScienceShot: Rough Life for Asteroid Lutetia
11 July 2010 9:45 pm
The Rosetta spacecraft didn’t linger in its 54,000-kilometer-per-hour flyby of the asteroid Lutetia on Saturday, but it has already confirmed the impression left by observations from afar: Lutetia is a much-battered remnant of the earliest days of the solar system. As astronomers had inferred, the asteroid, located in the main asteroid belt between Mars and Jupiter, is elliptical and 132 kilometers long; it's also roughly shaped and bears several craters, including at least one large impact crater. That amount of damage indicates that Lutetia has been around for billions of years. Settling the debate over the asteroid's ultimate origin will require an analysis of its mineralogical nature (i.e., whether it is rocky or a metallic). Astronomers hope Rosetta’s spectroscopic observations will provide those data in the coming weeks and months.
See more ScienceShots.