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!
A slew of announcements about new materials and design concepts for transportation have come out of several trade shows focusing on plastics, aircraft interiors, heavy trucks, and automotive engineering. A few more announcements have come independent of any trade shows, maybe just because it's spring.
At the JEC Europe 2015 composites show in Paris last month, makers of composite materials, software, and process equipment showed off their latest innovations. This year's show saw some announcements related to automotive applications, but many of the improvements came in the world of aerospace.
The DuPont-sponsored Plastics Industry Trends survey shows engineers want improved performance in a broad range of plastics and better recycling technology. These concerns top even processing enhancements that improve productivity.
Plastics leader SABIC recently announced a global initiative to help its customers take advantage of additive manufacturing (AM) and also advance 3D printing (3DP) technologies in several application areas. The company's plans go way beyond materials, and also include design, processing, and part performance.
A theme that was reflected in several ways at NPE 2015 was the use of 3D printing to assist in, or improve on, injection molding, as well as improvements in 3D printing materials and processes that are making better functional prototypes and end-use parts.
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