Emily Rose Kafoury (born November 20, 1995) known as Nova (often stylized as NOVA), is a Canadian singer and songwriter from Montreal, Quebec.

A nova (plural or novas) is a cataclysmic nuclear explosion on a white dwarf, which causes a sudden brightening of the star. Novae are not to be confused with other brightening phenomena such as supernovae or luminous red novae. Novae are thought to occur on the surface of a white dwarf in a binary system when they are sufficiently near to one another, allowing material (mostly hydrogen) to be pulled from the companion star's surface onto the white dwarf. The nova is the result of the rapid fusion of the accreted hydrogen on the surface of the star, commencing a runaway fusion reaction.

Nõva may refer to several places in Estonia:

• Nõva Parish, municipality in Lääne County
• Nõva, Lääne County, village in Nõva Parish, Lääne County
• Nõva, Jõgeva County, village in Pala Parish, Jõgeva County

Northern Virginia–commonly referred to as NOVA–comprises several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C. With 2.8 million residents (about a third of the state), it is the most populous region of Virginia and the Washington metropolitan area. As the term is most often used, it excludes such areas as Warren County and Winchester; "Northeastern Virginia" more closely approximates the area usually meant.

A nova is an exploding star.

Nova+ is a Bulgarian reality TV channel. The channel launched with the start of the first season of Big Brother (Bulgaria) in 2004, which was also the very first reality show in Bulgaria. During Big Brother 1 the name of the channel was simply Big Brother Live, but its name was changed into Nova+ after the start of the first season of Star Academy Bulgaria on 11 April 2005. The channel aired only during the Big Brother seasons from season 1 to 4.