By Leonard David
Senior Space Writer
posted: 09:30 am ET
14 May 2002
A meteorite that fell to Earth from Mars purported to offer evidence of past
Martian biology has fallen from grace. That's the assertion from two
scientists who say the rock's strongest link to life -- as claimed by other
researchers -- has broken down.
In December 1984, ALH 84001 -- often called the "Mars rock" -- was picked up
in Antarctica by a National Science Foundation-sponsored meteorite-hunting
expedition. Tossed into s
