Colonization of Mars of sending a person to Mars in 11 or 12 years". Richard Branson, in his lifetime, is "determined to be a part of starting a population on Mars. I think it is absolutely realistic. It will happen... I think over the next 20 years, we will take literally hundreds of thousands of people to space and that will give us the financial resources to do even bigger things". In June 2013, Buzz Aldrin, American engineer and former astronaut, and the second person to walk on the Moon, wrote an opinion, published in "The New York Times", supporting a human mission
Celebrate the Century September 1999. Denomination: 33¢ No of stamps in sheet: 15 The stamps: Background image: Astronaut Buzz Aldrin sets up seismic equipment to record lunar tremors. Intaglio stamp: Buzz Aldrin's . Title: "Bicentennial, Watergate, and Earth Day". Date of issue: 18 November 1999. Denomination: 33¢ No of stamps in sheet: 15 The stamps: Background image: Ships gather in New York Harbor under the Statue of Liberty to take part in Bicentennial celebrations, July 4, 1976, marked the 200th birthday of the United States. Intaglio stamp: Videocassette recorder. On the occasion of the unveiling of the Boeing 747 stamp by the USPS,