Canadian astronaut Steve MacLean, who likely won’t be back in space until 2005, says a manned mission to Mars isn’t impossible. “We basically need the starter with a starter gun who says, ‘Go, let’s do it,’ ” MacLean said in an interview. “We have the capability to go, there are some technologies we need to improve before we actually try to go (to Mars), but we definitely can do it with what we have now.” MacLean said NASA, the Canadian Space Agency and others involved in space missions are trying to get technology in place to get a manned mission to the Red Planet.