Cosmic rays are primarily composed of protons, but also of helium, carbon, oxygen, and iron nuclei. © Chinese Academy of ...

Particle accelerators such as those at the European Organization for Nuclear Research (CERN) in Geneva are typically highly ...

A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Many heavy atoms form from a supernova explosion, the remnants of which are shown in this image. NASA/ESA/Hubble Heritage Team ...

Drilling at the Topaz Project near Babbitt detected helium-3 around 14.5 ppb - comparable to Apollo lunar samples - in deep ...

When theoretical physicists like myself say that we’re studying why the universe exists, we sound like philosophers. But new data collected by researchers using Japan’s Subaru telescope has revealed ...

A research team has achieved a significant breakthrough in determining fundamental properties of atomic nuclei. The team conducted laser spectroscopy experiments on muonic helium-3. Muonic helium-3 is ...

Why does the sun shine, and how does it avoid burning out? The sun's energy is produced through a process called fusion, ...

The original version of this story appeared in Quanta Magazine. A new measurement of the strong nuclear force, which binds protons and neutrons together, confirms previous hints of an uncomfortable ...