Our own bodies - muscles, bones, and tissue - contain naturally occurring radioactive elements. Man has always been exposed to natural radiation arising from the earth as well as from outside the ...

To make matters worse, NASA scientists also discovered that, this year, summer ice in the Antarctic retreated to 764,000 square miles (1.98 million square kilometers) as of March 1, tying for "the ...

People who live in the Columbia Basin near the Hanford site have joked about the myth of glowing in the dark. But in the ...

Arctic winter sea ice reached its lowest extent on record at its annual peak on March 22, 2025, while global ice coverage also hit a record low in mid-February. On March 22, 2025, Arctic sea ice ...

All too often, the distinction between what is and isn’t considered to be harmful appears to be made purely on basis of whether it is ‘natural’ radiation or not. The Sun is ‘natural ...

More than 4 to 5 Sv is likely to be fatal. The workers who got radiation sickness at Chernobyl received doses that measured 700 mSv to 13 Sv. Natural radiation is everywhere -- in the air ...

You’ve probably never thought about radiation in your cargo. Most people don’t, and yet this invisible threat actually poses ...

This process, whereby species evolve rapidly to exploit empty ecospace, is known as adaptive radiation. In his memoir, The Voyage of the Beagle, Darwin noted, almost as if in awe, "One might ...

What are the typical radiation doses associated with CT examinations? CT scans of the head, for example, expose patients to about the equivalence of one year of natural radiation. This is about 100 ...