U2

are a rock band from Dublin, Ireland. The group consists of Bono (vocals and guitar), The Edge (guitar, keyboard, and vocals), Adam Clayton (bass guitar), and Larry Mullen (drums and percussion).

The

Lockheed U-2

, nicknamed "

Dragon Lady

", is a single-engine, very high-altitude reconnaissance aircraft operated by the United States Air Force and previously flown by the Central Intelligence Agency. It provides day and night, very high-altitude (70000 ft), all-weather surveillance. The aircraft is also used for electronic sensor research and development, satellite calibration, and satellite data validation.

The

1960 U-2 incident

occurred during the Cold War on May 1, 1960 (during the presidency of Dwight D. Eisenhower) when an American U-2 spy plane was shot down over the Soviet Union. At first, the United States government denied the plane's purpose and mission, but was forced to admit its role as a covert surveillance aircraft when the Soviet government produced its remains (largely intact) and surviving pilot, Francis Gary Powers. Coming just over two weeks before the scheduled opening of an East-West summit in Paris, the incident was a great embarrassment to the United States and prompted a marked deterioration in its relations with the Soviet Union.

U2 Clothing

is a casual-wear clothing brand founded by Michael Tien in 1980 in Hong Kong. Tien founded G2000 at the same time, with both operating under the

G2000 Apparel Limited

brand.

U2 (Udaya 2)

is Kannada music channel which is a part of the Sun Network.

The

Siemens-Duewag U2

is a light-rail vehicle. Originally designed for and used by the Frankfurt U-Bahn, the model of car was adopted by light railways in Edmonton, Calgary, and San Diego during a period in which few purpose-built trams were being manufactured.

Rocket U2

is a suite of database management (DBMS) and supporting software now owned by Rocket Software. It includes two MultiValue database platforms: UniData and UniVerse. Both of these products are operating environments which run on current Unix, Linux and Windows operating systems. They are both derivatives of the Pick operating system. The family also includes developer and web-enabling technologies including SystemBuilder/SB+, RedBack, and wIntegrate.

U2

is a line on the Berlin U-Bahn. The U2 line starts at the Pankow urban rail (S-Bahn) station, runs through the eastern city centre (Alexanderplatz) to Potsdamer Platz, the western city centre (Wittenbergplatz, Zoologischer Garten) and finally to the Ruhleben terminal station.

U2

is an EP by the experimental music and sound collage band Negativland, released in 1991. The EP and the band gained notoriety when lawyers representing Island Records, the record label of the band U2, sued over misleading artwork and the use of unauthorized sampling.

The

Polikarpov U-2

or

Po-2

served as a general-purpose Soviet biplane, nicknamed Kukuruznik for maize; thus, 'maize duster', NATO reporting name of "Mule". The reliable, uncomplicated and forgiving aircraft served as a trainer and crop-duster. It is the second most produced aircraft, and the most produced biplane, in the history of aviation.

U2 spliceosomal RNA

is a small nuclear RNA (snRNA) component of the spliceosome (involved in pre-mRNA splicing). Complementary binding between U2 snRNA (in an area lying towards the 5' end but 3' to hairpin I) and the branchpoint sequence (BPS) of the intron results in the bulging out of an unpaired adenosine, on the BPS, which initiates a nucleophilic attack at the intronic 5' splice site, thus starting the first of two transesterification reactions that mediate splicing.

In human mitochondrial genetics,

Haplogroup U

is a human mitochondrial DNA (mtDNA) haplogroup.

Urotensin-II

(U-II) is a peptide ligand, initially isolated from the neurosecretory system of the Goby fish (Gillichthys mirabilis). For many years it was thought that U-II does not exhibit significant effects in mammalian systems; a view quickly overturned when it was demonstrated that Goby U-II produces slow relaxation of mouse annococygeus muscle, in addition to contraction of rat artery segments. In 1998, the cDNA encoding a U-II precursor was cloned in humans, unequivocally demonstrating its existence in mammalian species.

In 1996, a new U-Bahn contract, known as „30 billion package“ , was completed. For the first time in Europe, an U-Bahn project had to undergo a costly and lengthy environmental impact assessment, as the U2 extension showed a length of more than 10 km (6.2 mi). This expansion phase was, in particular, about:

*

U1 extension to Leopoldau

On 19 October 2001, the groundbreaking ceremony for the extension of U1 was held, for which the two districts were waiting for 20 years. After five years of construction, the 4,6 km (2.9 mi) long extension of the U1 was opened on 2 September 2006.

*

U2 extension from Schottenring to Stadion

On 12 June 2003, the groundbreaking ceremony took place outside the Stadion. Due to the European Football Championship 2008 in Austria, there was given an enormous pressure to meet the proposed timeframe of the U-Bahn construction work. The Wiener Linien had done it and on 10 May 2008 the U2 extension to the Stadion and up to Aspern was opened.