Buzz Aldrin to launch Martian...

Buzz Aldrin to launch Martian cruise service: "The second man to walk on the Moon is planning a chain of 'orbiting hotels' cruising perpetually between the Earth and Mars. Within 20 years, three spacecraft carrying up to 50 passengers would operate a continuous liner service between the two planets, ferrying the people and materials that would be needed to start a Martian colony - or offering the ultimate package tour. To reduce the cost of the eight-month voyage, the vessels, known as 'cyclers', would be propelled mainly by the gravity of the Sun, the planets and their moons, orbiting the Sun under their own momentum. Their orbits would be calibrated to cross those of the Earth and Mars when the planets were near by, allowing passengers to take 'taxi' craft, like the space shuttle, to and from the planets."