A giant, gaping hole that opened up in the Sun's atmosphere has been identified as the source of a surprising abundance of a rare isotope of helium. In late October 2023, the Sun was recorded belching ...

Helium is the simplest element in the periodic table with more than one particle in its nucleus, yet state of the art theory and experiments on it don't add up. When you purchase through links on our ...

Something genuinely strange has just happened in fundamental physics: an underground neutrino telescope in the Mediterranean ...

Theoretical calculations predict a complex excited state (0+) for helium-4 (4He) at the 20.21 MeV energy level. This state involves a coupling of three cluster configurations: hydrogen-3 and a proton, ...

A photon is absorbed by the ground state of helium-4. This excites the transition to the first excited state of helium-4, which sits just above the energy threshold for separation into a proton and a ...

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 ...

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 ...

Helium nanodroplets offer a unique medium for realising and exploring quantum fluid behaviour at ultralow temperatures. These nanoscale clusters of helium atoms, which exist in a superfluid state ...

Like fishermen trolling in strange water, atomic physicists send instruments groping through the earth’s upper atmosphere to trap whatever happens to come by. Last week scientists at the University of ...