migration background (German: Migrationshintergrund) is a term used to describe people on the basis of identity and ancestry. Migration background is a variably...

Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate...

Low-background steel, also known as pre-war steel, pre-atomic steel, or pre-nuclear steel, is any steel produced prior to the detonation of the first nuclear...

The cosmic microwave background (CMB, CMBR), or relic radiation, is microwave radiation that fills all space in the observable universe. With a standard...

A background check is a process used by an organisation or person to verify that an individual is who they claim to be, and check their past record to...

Background music (British English: piped music) is a mode of musical performance in which the music is not intended to be a primary focus of potential...

A background process is a computer process that runs behind the scenes (i.e., in the background) and without user intervention. Typical tasks for these...

The Cosmic Background Explorer (COBE /ˈkoʊbi/ KOH-bee), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from...

The gravitational wave background (also GWB and stochastic background) is a random background of gravitational waves permeating the Universe, which is...

Background noise or ambient noise is any sound other than the sound being monitored (primary sound). Background noise is a form of noise pollution or...