11.   Definitive conclusions about the possibility of Martian life may have to wait until spacecraft bring carefully selected samples back from the planet, possibly in a decade or so.

12.   Even if this was not supporting Martian life, the presence of water could be a source of oxygen and fuel for human explorers to the planet.

13.   He is currently studying the possibility of Martian life.

14.   If the possibility of finding Martian life or subsurface water requires deep drilling, it may require the adaptability and intelligence of humans, they said.

15.   If there is no Martian life, then what of the three new planets recently detected around faraway solar-type stars?

16.   In August, scientists caused a sensation with the announcement of traces of possible early Martian life found in the potato-size rock.

17.   In August, the researchers reported in Science magazine that the rock contained two key signs of Martian life.

18.   In other words, mainstream theologians would not see Martian life as satanic.

19.   It is possible, however, that Martian life survives today in rocks under the surface, he added.

20.   May some of those at some time have carried some Martian life to Earth?