Their cells are at a dividing faster rate, so the impact of radiation can be much larger.
Although dubious about the funding, the technology and the impact of radiation, Love applauds small enterprises like Mars One.
So far the direct economic impact of radiation fears on exports is slight.
In 2011, Gupta reported from earthquake- and tsunami-ravaged Japan, adding clarity and context to the human impact and radiation concerns.
Estimates about the health impact of radiation have varied hugely.
CNN: The woman powering Japan's nuclear hopes post-Fukushima
Bigelow says that in the three most important measures of a space station's viability--volume, ability to take impact and radiation protection--his expandable systems work much better than traditional hard-sided metal habitats.
By contrast, sieverts - another unit commonly used during the last month's reporting - measure the likely medical impact of the radiation to which an individual is exposed.
Volkow says that since she began working with the National Institutes of Health researching the impact of cell phone radiation, she always uses a wired earpiece when talking on her cell phone.
Two of the three workers inside the plant received more than the lethal dose of seven sieverts (a sievert is the unit that measures the intensity of radiation's impact on the body).
Previous research by German scientists in 1999 suggested that short wave radiation had an "undefined negative" impact on homing pigeons.
The first, solar-radiation management, focusses on reducing the impact of the sun.
Ecologists and biologists who toured Fukushima prefecture earlier this year found that the radiation release appeared to have had a dramatic impact on birds in the region.
The company will further investigate the possible spread of contamination and its potential impact in the ocean, including the existence of beta radiation that could contain harmful strontium, company spokesman Yoshikazu Nagai said.
Atomic radiation expert Wolfgang Weiss said it was too early to assess the full impact of the situation but traces of radioactivity detected around the world were much lower than those found after the Chernobyl disaster in Ukraine in 1986.
Even if the nuclear accident is brought under control swiftly, and the release of radiation turns out not to be large enough to damage public health, this accident will have a huge impact on the nuclear industry, both inside and outside Japan.
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