Photo Credit: Reuters If the prospect of spending a thousand days up to 140 million miles away from the Earth was not enough of a deterrent, killer radiation levels and enforced radio silence would surely deter most volunteers from travelling to Mars. Nasa, however, has revealed that near-record numbers are applying for its astronaut training programme, as renewed enthusiasm for space travel is fueled by growing hopes of a manned Mars mission.

Since the successful landing of the Curiosity rover in August, the scientific community has begun to take more seriously a promise from President Obama, made in 2010, to land humans on the surface of Mars within 20 years or so. Some privately-backed rival ventures are even forecasting that they will get to Mars orbit as early as 2018; Nasa plans a deep-space practice mission, to rendezvous with a captured asteroid, by 2025.

“Interest in sending humans to Mars has never been higher,” Nasa’s chief administrator, the former astronaut Charles Bolden, told a conference in Washington on Monday. “‘We now stand on the precipice of a second opportunity to press forward with what I think is man’s destiny, and that is to go forward to another planet.”

Within the next few weeks, Nasa plans to announce which 20 trainee astronauts it has chosen from 6,300 recent candidates – its second-highest application total since the agency was established, in 1958. “These astronauts will be among the first trained specifically for long-duration space flights,” said Bolden.

Despite sweeping US budget cuts under the sequestration, Nasa still hopes for an annual budget of $17.7bn – which will be increasingly targeted on the Mars mission. The agency is seeking congressional approval to outsource to private contractors all future rocket missions to low earth orbit, so it can concentrate on deep space instead.

Read more from this story HERE.