Articles sur Radiation

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Tim Peake, Yuri Malenchenko and Tim Kopra are about to return to Earth after a six-month stay at the ISS. NASA/Victor Zelentsov

How much radiation damage do astronauts really suffer in space?

In theory, astronauts get the equivalent of a lethal x-ray dose during a six-month stay at the ISS. Here's why we don't have to worry too much though.
A solar water heating unit on the roof of a home in Kuyasa outside Cape Town. South Africa has a long way to go to get people off the grid and onto solar heating. Epa/Nic Bothma

Advances in getting solar onto the grid, and into the home

Africa is blessed with an abundance of sunshine.Given the heavy demand for energy, alternatives, such as solar, could provide solutions and help stimulate economic growth.
Blowing up the desert – and people’s minds: the first atom bomb test in 1945. US Government

Radiation in the postwar American mind: from wonder to worry

The first atom bomb test seventy years ago today marks the start of a change in Americans' thinking about radiation. On balance, our nuclear anxieties endure today.
Like Icarus, passengers on aircraft during solar flares can cop the effects of flying close to the sun. HK.Colin/Flickr

Are you a frequent flyer? Solar storm radiation can be harmful

Space weather impacts many modern-day technologies. But one of the most concerning – and least reported – space weather effects is the increased radiation exposure to passengers on commercial long-distance…
Not all radiation is harmful. Image from shutterstock.com

Nuclear workers’ risk of cancer lower than previously thought

Every job comes with risk and for those who work in the nuclear power industry the long-term risk of cancer is small but significant. Last decade, research looking into the prevalence of cancer in nuclear…

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