1.   For example, biologists have been searching ancient Earth rocks for traces of fossilized ancient microbes resembling those found in the Mars rock.

2.   The rock contains hot-dog-shaped objects that may be fossilized Martian microbes.

3.   They also took neat photos of microscopic strands that might be fossilized microbes.

4.   Those suspicions reached fever pitch a year ago this Thursday, when scientists announced the discovery of possible fossilized microbes in a meteorite that fell to Earth from Mars.

5.   Were the objects fossilized microbes?