View Full Version : Martian meteorite features may have formed in water

2004-May-21, 07:55 PM
'Martian features' found on Earth (http://news.bbc.co.uk/2/hi/science/nature/3034165.stm)

Features in a Martian meteorite believed by some to be the fossilised remains of alien bacteria may have formed underwater, scientists claim.

2004-May-21, 08:28 PM
Anyone think that a sample return mission won't solve the controversy or answer the question? The articles always state that it will provide the answer.

If the sample contains material like what the asteroid contains, then we'll still have the same debate about whether it is biology or chemistry.

2004-May-21, 11:12 PM
The writers seem to have forgotten that the Lake Van features are microbialites, those in ALH84001 are in an igenous rock. Morphological comparisons are therefore dangerous in the extreme.

And yes, sample return will clear up some problems, but create others. There are still plenty of debates over lunar samples.