Alpha /ˈælfə/ (uppercase Α, lowercase α) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived...

Alpha Kappa Alpha Sorority, Inc. (ΑΚΑ) is the first intercollegiate historically African American sorority. The sorority was founded on January 15, 1908...

Generation Alpha (often shortened to Gen Alpha) is the demographic cohort succeeding Generation Z. Researchers and popular media use the early 2010s as...

Alpha Phi Alpha Fraternity, Inc. (ΑΦΑ) is the oldest intercollegiate historically African American fraternity. It was initially a literary and social...

Alpha Omega Alpha Honor Medical Society (ΑΩΑ) is an honor society in the field of medicine. Alpha Omega Alpha currently has active chapters in 132 LCME-accredited...

Alpha Chi Alpha (ΑΧΑ) is a fraternity at the American Ivy League university of Dartmouth College. Alpha Chi Alpha is a member of Dartmouth's Greek system...

stages, such as pre-alpha, alpha, beta, and release candidate, before the final version, or "gold", is released to the public. Pre-alpha refers to the early...

Alpha Sigma Alpha (ΑΣΑ) is a United States National Panhellenic sorority founded on November 15, 1901, at the Virginia State Female Normal School (later...

Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4...

Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus. It consists of three stars: Rigil...