The Lunar Reconnaissance Orbiter (LRO), shown here in an artist's conception, is currently orbiting the moon, carrying an instrument that's shown plastic can help protect astronauts from cosmic radiation. That instrument, the Cosmic Ray Telescope for the Effects of Radiation (CRaTER), can be seen at the bottom left corner of the spacecraft. (Source: Chris Meaney/NASA)
naperlou, I think you are wrong. Further from the Sun, really. I just don't buy that. Cosmic raditaion is out there, everywhere in space. Shielding is not just important, it is a necessity for people to survive long periods of time in space. You are assuming that all of the radiation comes from the Sun however, which I believe to be false(and is). Those people who are brave enough to stay in space for those periods of time know the consequences. Everything that can be done to minimalize that exposure to radiation should be done.
Warren, I agree. It has always been at the top of the list of problems facing astronauts as much as I can recall. Having to hide in case of a solar flare, etc. They need protection if they ever want to make it to Mars. The old astronauts used to say when they closed their eyes they saw little sparks of light....radiation. Not good. This is a step in the right direction to protecting those brave enough to go out there. naperlou, the case I metioned earlier where they had to hide from a solar flare...if I recall correctly was on the ISS.
The main source of radiation in space that we must protect astronauts against is cosmic rays, specifically galactic cosmic rays (GCR). As we mention in the article, these are far more damaging to humans than any radiation we experience on Earth, from any source. The lack of enough protection for astronauts on extended voyages is often mentioned as one of the main reasons we haven't sent people to Mars yet.
Warren, I am not sure it is as bad as you think. As you get further out from the source the density of the radiation decreases. Exploration further from the sun should be safer, assuming that the sun is the main source of the radiation. We have had astronaughts in space for some time now and the ISS allows us to have people in orbit for longer periods of time. Shielding is important, but it's need should not deter us.
As a kid, and as an adult, I loved and love science fiction. I think it had a lot to do with me becoming an engineer.
But I was always troubled by the scientific inconsistencies.
One book had a moon landing using parachutes. I knew better than that as a 10 year old. And there are many more issues raised.
But the radiation thing has bothered me a lot. I am a big fan of a trip to Mars, but I don't want corpses arriving there or here. It should not be a suicide mission, although I suspect there would still be plenty of volunteers!
The shielding issue is major. Not only is the "Moon a harsh mistress" but all of "empty" space is a dangerous mine field. Good luck solving all those problems!
The company that brought you 3D-printed eyeglasses has launched both an improved clear polymer material for 3D printing optical components and a high-speed, precision, 3D-printing process for making small- and medium-sized batches in a few days.
We've found an amazing variety of robot hands & arms in medicine, space, and service robots, as well as R&D and assembly. Some are based on industrial designs modified for speed or dexterity, while others more closely emulate human movements, as well as human size and shape.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
A tiny humanoid robot has safely piloted a small plane all the way from cold start to takeoff, landing and coming to a full stop on the plane's designated runway. Yes, it happened in a pilot training simulation -- but the research team isn't far away from doing it in the real world.
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