Here's how repairs are carried out:
1. Mission Planning: Before a repair mission, NASA meticulously plans every detail, including the specific repairs needed, the tools required, and the astronauts' training.
2. Space Shuttle Launch: The Space Shuttle carrying astronauts and the necessary equipment is launched into orbit.
3. Rendezvous: The Space Shuttle docks with the Hubble Space Telescope.
4. Spacewalks: Astronauts, wearing specialized spacesuits, exit the Shuttle and perform the repairs.
* They use a variety of tools, such as wrenches, screwdrivers, and specialized instruments designed for working in the vacuum of space.
* They replace faulty components with new ones, often using the Space Shuttle's robotic arm to assist.
5. Deployed Instruments: New instruments or upgrades to existing ones are deployed and installed.
6. Final Check: After the repairs are completed, the astronauts conduct thorough inspections and tests to ensure everything is working properly.
7. Undocking & Departure: The Space Shuttle undocks from the Hubble Space Telescope and returns to Earth.
Hubble has been serviced a total of five times, from 1993 to 2009. These missions have extended its lifespan and improved its capabilities significantly.
Some of the key repairs and upgrades performed on Hubble include:
* Replacing faulty gyroscopes, which help to stabilize the telescope.
* Installing new instruments, such as the Advanced Camera for Surveys and the Wide Field Camera 3.
* Replacing the telescope's primary mirror, which had a slight flaw.
* Upgrading the telescope's power system and data transmission capabilities.
Future Servicing:
As Hubble continues to age, it may require further repairs. While there are no current plans for a manned servicing mission, NASA is exploring the possibility of using a robotic mission to extend Hubble's life.
It's important to note that Hubble's future depends on factors like its remaining lifespan and the availability of resources. While a robotic mission is being considered, it's not a guarantee.
