Tag Archives: human space

NASA Mars mission a one-way trip

  • Space program looking for volunteers
  • Program aimed at settling other worlds
  • Astronauts would not be brought home

IT’S the biggest dead-end job ever.

The settlers would be sent supplies from Earth but would go on the understanding that it would be too costly to bring them home / AFP

 

NASA is looking for volunteers to fly to Mars – the snag is that you won’t come back.

It is actively investigating the possibility of humans colonising worlds such as the Red Planet.

The settlers would be sent supplies from Earth but would go on the understanding that it would be too costly to bring them home.

NASA revealed that it had already received more than $1 million to commence work on the project at its Ames Research Centre in California.

Centre director Pete Worden, who claimed humans could be living on Mars by 2030 despite the inhospitable conditions, said: “The human space program is now aimed at settling other worlds.

“Twenty years ago you had to whisper that in dark bars or get fired.”

Mr Worden told a conference in San Francisco that he had discussed with Google co-founder Larry Page the potential for one-way trips to Mars.Scientists say much of the cost of such a mission is associated with bringing the astronauts home – the price of sending 20 Mars settlers with a one-way ticket would be equal to bringing four astronauts back.

Experts say a nuclear-fuelled rocket could make the journey in four months.

Of all the planets in the solar system, Mars is the most likely to have substantial quantities of water, making it the best bet for sustaining life.

But it is a forbidding place to set up home. Temperatures plummet way below freezing in some parts.

The thin atmosphere is mostly carbon dioxide, so oxygen supplies are a must.

Mr Worden suggested that new technologies, such as synthetic biology and alterations to the human genome, could be explored ahead of the mission.

Writing in the Journal of Cosmology, scientists Dirk Schulze-Makuch and Paul Davies envisaged sending four volunteer astronauts on the first mission to colonise Mars.

A one-way human mission to Mars would not be a fixed-duration project as in the Apollo program, but the first step in establishing a permanent human presence on the planet, they said.

USA’s 100-Year Starship Mission to Settle Other Worlds

Starship Enterprise might have some competition: NASA Ames Director Simon “Pete” Worden has revealed that NASA Ames has “just started a project with DARPA called the Hundred Year Starship,” with $1 million funding from DARPA and $100K from NASA.

“You heard it here,” said Worden at “Long Conversation,” a Long Now Foundation event in San Francisco according to Kurweil.net. “We also hope to inveigle some billionaires to form a Hundred Year Starship fund,” he added.

“The human space program is now really aimed at settling other worlds,” he explained. “Twenty years ago you had to whisper that in dark bars and get fired. NASA needs to build a true starship, probably using electric propulsion, probably also using solar energy and nuclear energy.”

One new propulsion concept is electric propulsion, said Worden. “Anybody that watches the [Star Trek] Enterprise, you know you don’t see huge plumes of fire. Within a few years we will see the first true prototype of a spaceship that will take us between worlds.

“We are [also] funding a young scientist to develop microwave thermal propulsion. The idea is if you can beam power to the spaceship, so you don’t have to carry all the fuel; and then you use that energy from a laser or microwave power to heat a propellant; it gets you a pretty big factor of improvement. I think that’s one way of getting off the world.”

Worden also cautioned that in settling on other worlds, we need to be cautious. “How do you live in another world?  I don’t have the slightest idea,” he said. “If you’re a conservative, you worry about it killing us; if you’re a liberal, you worry about us killing it. I think things like synthetic biology have lot of potential for that. I think rather than make an environment on Mars like Earth, why don’t we modify life … including the human genome … so it’s better suited to [Mars]?

Wordon thinks we should go to the moons of Mars first, where we can do extensive telerobotics exploration of the planet. “I think we’ll be on the moons of Mars by 2030 or so.”

Worden also says NASA Ames is exploring another radical new concept: a heavy-lift airship that could carry hundreds of tons. “I think that could revolutionize air transport, because it becomes very cheap and still goes 100 knots. The idea is that you could easily go to Hawaii overnight, for example… with a lot less fuel.

“The long-term answer [to the rapidly accelerating growth of travel in the developing world and the increase in greenhouse gas] is a “Tesla in the air” — using high-density batteries powered off ground-based solar grids, so your airliner stays plugged in overnight, and it’s got an electrical engine rather than a chemical engine. I think within ten years we’ll have small-scale business-level ones, and within 20, they’ll be the airliners. If we don’t, I think aviation’s through.”

Source: dailygalaxy