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Opportunity stumbles on possible meteorite
DR EMILY BALDWIN
ASTRONOMY NOW

Posted: August 03, 2009


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NASA's Mars Exploration Rover Opportunity has spied a rock that could be a meteorite.

Is "Block Island" a meteorite? Forthcoming analysis of the rock should be able to tell us. Image: NASA/JPL-Caltech.

The dark rock is roughly 0.6 metres across and has been nicknamed "Block Island". It was first spotted on 18 July, in the opposite direction to which Opportunity was driving. The rover then received instructions from scientists on the Earth to alter its course by some 250 metres in order to study the rock in greater detail.

Opportunity will test the rock with its alpha particle X-ray spectrometer to determine its composition and thus conclude if indeed it is a meteorite.

Close up of "Block Island." Image: NASA/JPL-Caltech.

Opportunity also lays claim to the first iron meteorite ever found on a planet other than Earth. That discovery was made in 2005 and since then the twin rovers have found at least half a dozen rocks from space with both iron-rich and stony compositions.

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Hubble Reborn
Hubble Reborn takes the reader on a journey through the Universe with spectacular full-colour pictures of galaxies, nebulae, planets and stars as seen through Hubble's eyes, along the way telling the dramatic story of the space telescope, including interviews with key scientists and astronauts.
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3D Universe
Witness the most awesome sights of the Universe as they were meant to be seen in this 100-page extravaganza of planets, galaxies and star-scapes, all in 3D!
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