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Articles on Radioactivity

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George De Hevesy working in his lab at Stockholm University in 1944. Keystone Features/Hulton Archive via Getty Images

How a disgruntled scientist looking to prove his food wasn’t fresh discovered radioactive tracers and won a Nobel Prize 80 years ago

Some Nobel Prize-winning ideas originate in strange places, but still go on to revolutionize the scientific field. George de Hevesy’s research on radioactive tracers is one such example.
The inside of the LZ outer detector. The LZ is a super sensitive machine that may one day detect a dark matter particle. Matt Kapust, SURF

Researchers dig deep underground in hopes of finally observing dark matter

To detect dark matter, you need to build an ultra-sensitive detector and put it somewhere ultra-quiet. For one physics collaboration, that place is almost a mile under Lead, S.D.
A new particle accelerator at Michigan State University is set to discover thousands of never-before-seen isotopes. Facility for Rare Isotope Beams

Powerful linear accelerator begins smashing atoms – 2 scientists on the team explain how it could reveal rare forms of matter

A new particle accelerator has just begun operation. It is the most powerful accelerator of its kind on Earth and will allow physicists to study some of the rarest matter in the universe.
The Piton de la Fournaise in eruption, 2015. Greg de Serra/Flickr

Where does the Earth’s heat come from?

The study of neutrinos produced within the Earth’s interior provides a better understanding of the radioactivity of our planet.

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