Posted by tourdemars to Life on Mars at January 25, 2004 12:00 PM

It may only be a thin blue line on the red planet, but it is set to spark a debate about life as we know it. The European Space Agency's unmanned spacecraft Mars Express has discovered evidence of frozen water at the planet's south pole, backing NASA findings made in 2002. If the planet does hold water, the possibility of extraterrestrial life, past or present, may also become more than just science fiction.