Life found in ancient water flowing through a northern Ontario mine could eventually help scientists unlock the mystery about whether there was ever life on Mars, according to a scientist at the University of Toronto. Barbara Sherwood Lollar, a professor of geochemistry, led a team of researchers at the Kidd Creek mine north of Timmins, Ont. that extracted the oldest sample of water ever found – almost 2 billion years old – from 2.4 kilometres underground.