One question, for instance, might be why can't we walk through walls? Atoms, which are the building blocks of matter, are ...

"This black hole could then grow and consume the entire planet, turning it into a black hole with the same mass as the ...

Einstein may have been troubled enough by entanglement to call it "spooky action at a distance" but scientists have ...

The first precise mass measurements of an extremely short-lived and proton-rich nucleus, silicon-22, have revealed the “magic” – that is, unusually tightly bound – nature of nuclei containing 14 ...

Long-sought clumps of four neutrons called tetraneutrons last less than a billionth of a trillionth of a second, an experiment suggests.

The atomic nucleus is made up of protons and neutrons, particles that exist through the interaction of quarks bonded by gluons. It would seem, therefore, that it should not be difficult to ...

In the first direct probes of the core of the nuclear interaction, researchers find that leading theories on interactions between protons and neutrons describe them well, even in conditions where the ...

The Spallation Neutron Source fires beams of protons to a target filled with mercury, producing neutrons that are then directed to various research instruments.

Protons and neutrons continue to interconvert, but less efficiently, and soon after, no more than 3 seconds after the Big Bang, it becomes too cold to spontaneously create electron-positrons pairs.

With seven protons and two neutrons, the lopsided atomic nucleus of nitrogen-9 pushes the limits of what can even be considered a nucleus.

HEISENBERG has discussed the hypothesis that the nucleus of an atom is composed of neutrons and protons only, the neutron being regarded as a fundamental entity and not as a combination of an ...

An internal beryllium target 8.9 mm. thick was bombarded by about 1 µ amp. of 171-MeV. protons, and neutrons emerging near the forward direction were collimated by a series of 5-cm. diameter ...