Instructions. 1  Pre-heat oven to 400 degrees. Line a half-sheet sized rimmed baking sheet with parchment paper. 2  Roast until browned and tender when pierced with a sharp paring knife, about 18 minutes. Timing will vary depending on your ovens and the size of the sprouts.
Hubble is the only telescope designed to be serviced in space by astronauts. After launch by Space Shuttle Discovery in 1990, four subsequent Space Shuttle missions repaired, upgraded, and replaced systems on the telescope.A fifth mission was canceled on safety grounds following the Columbia disaster.ubble was funded in the 1970s, with a proposed launch in 1983, but the project was beset by technical delays, budget problems, and the Challenger disaster. When finally launched in 1990, Hubble's main mirror was found to have been ground incorrectly, compromising the telescope's capabilities.
Many celestial phenomena can be seen at more than one wavelength. 1  Optical telescopes can be used on Earth and in space. An example of a huge optical telescope in space is the Hubble Space Telescope through which astronomers can look out across the Universe without the distortion of light by the Earth's atmosphere. The first optical telescope was created 400 years ago, while the other kinds of telescopes were invented in the 20th century.