The James Webb Space Telescope (JWST) is a cutting-edge space observatory that is slated to launch in October 2018. Designed to be the primary space observatory for the next decade, the JWST is considered to be the successor to the Hubble Space Telescope, with plans to both complement and expand upon contemporary discoveries.
The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton , using a concave primary mirror and a flat diagonal secondary mirror. Newton’s first reflecting telescope was completed in 1668 and is the earliest known functional reflecting telescope. The Newtonian telescope's simple design makes it very popular with amateur telescope makers.