NASA has made a startling discovery that points to the possibility that a primitive form of microscopic life may have existed on Mars more than three billion years ago. The research is based on a sophisticated examination of an ancient Martian meteorite that landed on Earth some 13,000 years ago. The evidence is exciting, even compelling, but not conclusive. It is a discovery that demands further scientific investigation. NASA is ready to assist the process of rigorous scientific investigation and lively scientific debate that will follow this discovery. I want everyone to understand that we are not talking about 'little green men.' These are extremely small, single- cell structures that somewhat resemble bacteria on Earth. There is no evidence or suggestion that any higher life form ever existed on Mars. -- Daniel Goldin, Administrator, NASA, 1996
There may have once been (and perhaps still is) life on Mars, but the evidence for it is barely stirring. R
An international team of researchers has discovered compelling evidence that magnetite crystals in the Martian meteorite ALH84001 are of biological origin. R
Research of possible microbial life on Mars can lead to advances in biotechnology and medicine while, at the same time, bringing us closer to understanding our origins. R