Since one sievert is a large quantity, radiation doses normally encountered are expressed in millisievert (mSv) or microsievert (µSv) which are one-thousandth or one millionth of a sievert. For ...

(Example: Exploring how distance and shielding materials affect exposure to radiation.) Energy and Matter: Exploring the transfer and transformation of energy during radioactive decay and nuclear ...

Elusive black hole radiation predicted by Stephen Hawking may have influenced the way the universe took shape after the Big Bang, new research suggests.

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 ...

This is basically a measure of how much punch the radiation packs. For example, alpha particles, which are relatively massive helium nuclei, are weighted 20 times higher than beta, gamma ...

Recovery from radiation sickness can take up to 2 years. But you'll still be at risk of other health problems after recovery. For example, your odds of getting cancer are higher.

The IAEA is supporting experts from around the world in using nuclear techniques such as radiation-based technology to understand and preserve cultural heritage.