Personality. Personality refers to individual differences in characteristic patterns of thinking, feeling and behaving. The study of personality focuses on two broad areas: One is understanding individual differences in particular personality characteristics, such as sociability or irritability.
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990, and remains in operation.
Originally set to launch in October 1986, the launch of the Hubble telescope was delayed for two years because of the explosion of the space shuttle Challenger. The shuttle that would put the Hubble into orbit finally launched on April 24, 1990.