New concept may enhance Earth-Mars communication

Direct communication between Earth and Mars can be strongly disturbed and even blocked by the Sun for weeks at a time, cutting off any future human mission to the Red Planet. An ESA engineer working with engineers in the UK may have found a solution using a new type of orbit combined with continuous-thrust ion [...]

Full story at http://spacefellowship.com/2009/10/16/new-concept-may-enhance-earth-mars-communication/