In 1995, Perkin-Elmer sold its 30,000th thermal cycler. In 1985, Aldrin proposed a special spacecraft trajectory now known as the Aldrin cycler. Cycler trajectories offer reduced cost of repeated travel to Mars by using less propellant. The term Mars cycler may also refer to a spacecraft on a Mars cycler trajectory. It provides an artist's rendering of a Mars cycler spacecraft. Aldrin proposed a pair of Mars cycler vehicles providing regular transport between Earth and Mars. The Aldrin cycler is an example of a Mars cycler. The cycler then raises and lowers the temperature of the block in discrete, pre-programmed steps. Some of these schemes include ABCDonor, Twinkas, Ultimate Cycler etc. One cycler would travel an outbound route from Earth to Mars in about five months. A cycler is a trajectory that encounters two or more bodies regularly. The winners of the third season former Olympic track cycler Mira Kasslin.