Finding a lunar meteorite's home | Science News



Support credible science journalism.

Subscribe to Science News today.


Finding a lunar meteorite's home

7:15pm, August 17, 2004

Scientists have for the first time pinpointed the source of a meteorite that came from the moon. By measuring the rock's age, the researchers have precisely dated the rock's lunar home, the Imbrium impact basin, which is the youngest of the moon's large impact craters. That crater's age may have special significance because Imbrium's formation marks the end of an era in which space debris walloped the inner solar system. Researchers have long argued that life on Earth couldn't have evolved until after that bombardment.

Found in the desert of Oman in 2002, the 7-ounce stone has a greenish hue mixed with bits of white. That appearance is typical of lunar rocks, but this meteorite turns out to be exceptional.

Edwin Gnos of the University of Bern in Switzerland and his colleagues found that relative to other rocks fr

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content