The correct answer is: quest.
The Hubble Space Telescope is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned both
as a vital research tool and as a public relations boon for astronomy. The HST is named after the astronomer Edwin Hubble and is one of NASA’s Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.The HST is a Cassegrain reflector, with a primary mirror 2.4 meters in diameter and a secondary mirror 1.2 meters in diameter. The telescope is designed to observe visible light, near-infrared light, and near-ultraviolet light. It has four main instruments: the Advanced Camera for Surveys, the Cosmic Origins Spectrograph, the Wide Field Camera 3, and the Near Infrared Camera and Multi-Object Spectrometer.
The HST has made many important discoveries, including the expansion of the universe, the existence of dark matter and dark energy, and the formation of stars and galaxies. It has also provided stunning images of the universe, some of which have become iconic.
The HST is a vital tool for astronomers, and its discoveries have revolutionized our understanding of the universe. It is a testament to the ingenuity of human beings, and it is a source of wonder and inspiration for people all over the world.
The other options are:
- Discovery: the act of finding something that was previously unknown.
- Perception: the process of becoming aware of something through the senses.
- Enquiry: the act of seeking information or knowledge.
Quest: a long journey in search of something.