Space.com: Promising New Space Engines are Opening the Solar System
ESA video on advanced propulsion: "Electric ion engines; plasma drives, slingshot-style gravitational-assist maneuvers; ultra-light super-strong solar sails and other innovations are driving exploration forward beyond reliance on chemical rockets."
--Ben 12:00, 27 May 2009 (UTC)
The Atlantic: Across the Universe
An article about The Planetary Society's efforts to fly another solar sail demonstration mission - Cosmos 2. Their previous attempt, Cosmos 1, suffered a launch vehicle failure.
--User:Ben 12:00, 5 May 2009 (UTC)
--User:Ben 12:00, 3 April 2009 (UTC)
--User:Ben 12:00, 6 October 2008 (UTC)
--User:Ben 12:00, 1 October 2008 (UTC)