Subatomic particles are particles that are smaller than an atom. Historically subatomic particles were considered to be electrons, protons, and neutrons. However, the definition of subatomic particles has now been expanded to include elementary...

For nearly a century after the English scientist John Dalton announced his atomic theory in 1803, the concept that matter consisted of atoms and that atoms were tiny, indivisible particles was widely accepted among scientists. The concept of the atom...

Although the concept of the atom dates back to ancient Greece and the scientist/philosopher Democritus (c. 460-370 B.C.) who defined atoms as matter "unable to be cut," and since English scientist John Dalton's (1766-1844)...

For nearly a century after John Dalton announced his atomic theory in 1803, the concept that matter consists of tiny, indivisible particles (atoms) was widely accepted among scientists. That theory explained nearly all physical phenomena involving...

A subatomic particle is an elementary or composite particle smaller than an atom. Particle physics and nuclear physics are concerned with the study of these particles, their interactions, and non-atomic matter. Subatomic particles include the atomic...

NUCLEAR PHYSICISTS have tracked down one of the last missing subatomic particles, a tiny, reclusive but essential building block of the cosmos. Decades after its existence was first postulated on paper, a team of scientists at the Fermi National Accelerator Laboratory near Chicago...

On Halloween, the object of the most expensive and laborious hunt in the history of physics may have been found under the Illinois prairie. Scientists think they might have caught a glimpse of a ghostly particle known as the top quark. Hundreds of...

“Manhattan’s only family home preserved intact from the mid-19th century,” the Merchant’s House Museum, hosts afternoon tea—specifically, “Scottish scones with jam and cream, and decadent sweets” (eek, relapse!)—followed by psychic readings, which the museum’s personal astrologer, Roberta Alessandra, explained to us would involve “mini-readings, astrology,...

A 43-foot-long magnet for the world's largest particle collider broke "with a loud bang and a cloud of dust" during a high-pressure test, and officials said Tuesday they are working to find a replacement part.The part that failed March 27 was in a super-cooled magnet...