Toronto: Buzz Aldrin, former NASA astronaut and the second man on the Moon felt that the first human beings who go to Mars shouldn't return to the Earth.

According to Aldrin, Mars exploration would be more cost-effective if people are left on the Red Planet as settlers.

The former NASA astronaut expressed his views when he attended the 34th Space Development Conference (ISDC2015), in Toronto as the keynote speaker this weekend.

Aldrin's ideas sound similar to the Mars One Project, a privately run initiative aiming to establish a permanent human settlement on Mars by 2027.

The conference, conducted by the National Space Society, saw scientists, businesses, educators and students from around the world sharing their views on space and its future.

Aldrin's vision is to have people on Mars by 2035, but in various stages which would continue in intervals.

The astronaut also said that the Mars exploration will not be a race about who reaches first, but a collaborative effort among the countries.

Aldrin also explained how a one-way trip to Mars would reduce costs, as it could be done with less expenses.