The element radium can be found in extremely tiny amounts in the Earth’s crust and oceans, and in its pure form it is a soft silvery metal. To an untrained eye, a small piece of radium may look like a ...

For half a century, our view of the world has been based on the standard model of particle physics. However, this view has been challenged by theories 1 that can overcome some of the limitations of ...

Over 2,500 years ago, two small stars collided. The collision produced an outburst called a red nova, which then slowly cooled, producing molecular gas and dust. By the time the light from the nova ...

ASSERGI, Italy – In a research lab under almost a mile of rock and a six-centimeter-thick shield created from boiled-down lead from an ancient Roman shipwreck, physicists are observing a rare form of ...

Students will test and observe how distance affects radiation measurements from radioactive sources. Students will test and observe how different types of shielding materials affect radiation ...

What’s going on with this silent threat that can stealthily damage your body in ways that can take years to reveal themselves ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. “What is radium and why is it dangerous?” – ...