Telescope

The telescope will hover in a gravitationally stable spot known as Sun-Earth Lagrange Point 2, which will allow it to stay aligned with Earth as the planet [blank] around the sun. Because JWST is primarily designed to observe infrared light, it's [blank] to keep it protected from any heat or light that could [blank] out the faint signals of distant stars and planets. With the sunshield, it should only reach a maximum of 185 degrees Fahrenheit on the side exposed to solar rays; the opposite side, where the telescope's mirrors, detectors, and other [blank] instruments live, will remain at a chilly -388 degrees Fahrenheit. The intriguing gravitational properties of the Lagrange Point ensure that JWST won't flip around and fry its sensors while the solar panels and computers freeze. JWST should be ready to begin its primary scientific mission in roughly six months. The $10 billion telescope is [blank] to last at least five years once its mission begins, and carries enough propellant to operate for a decade.