Skeptics love to bring up one particular topic regarding long-term human space exploration—radiation. So far, all of the research completed on it has been relatively limited and has shown nothing but ...

Radiation poisoning happens when you’re exposed to extremely high radiation levels, like those caused by a nuclear explosion. Early symptoms include nausea and vomiting. Later, it causes organ damage.

Radiation can wreak havoc on the human body when it's exposed to high doses or for prolonged periods of time. The world understood this in horrifying detail after the Chernobyl and Fukushima Daiichi ...

Whether its lead from old buildings, arsenic from contaminated food or strontium fallout from a nuclear explosion, heavy metals that enter the body pose a serious health threat. With chemical ...