Which of the following are correct regarding the space telescope launched by the US space research a...........

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Which of the following are correct regarding the space telescope launched by the US space research agency NASA?

1. The Hubble Space Telescope is the only telescope that is maintained in space since the year 1946.

2. A space telescope can observe with better resolution than an earth-based observatory which will be limited only by the diffraction limit.

3. After the 5th repair mission in 2009, the telescope is expected to be 10-20 years from today, so, no successor for the Hubble Space Telescope is planned before the year 2030.

Select the correct answer using the following code:

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

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Explanation:

Space Telescopes by NASA :

Hubble is the only telescope designed to be maintained in space by astronauts. Five Space Shuttle missions have repaired, upgraded, and replaced systems on the telescope, including all five of the main instruments. The fifth mission was initially canceled on safety grounds following the Columbia disaster (2003), but NASA administrator Michael D. Griffi n approved the fifth servicing mission which was completed in 2009. The telescope completed 30 years in operation in April 2020 and could last until 2030–2040. One successor to the Hubble telescope is the James Webb Space Telescope (JWST), which is to be launched in December 2021.
The James Webb Space Telescope (JWST) is a space telescope being jointly developed by NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA). It is planned to succeed the Hubble Space Telescope as NASA’s fl agship astrophysics mission.
JWST was scheduled to be launched no earlier than 25 December 2021 during Ariane fl ight VA256. It will provide improved infrared resolution and sensitivity over Hubble and will enable a broad range of investigations across the fi elds of astronomy and cosmology, including observing some of the most distant events and objects in the universe, such as the formation of the fi rst galaxies, and detailed atmospheric characterization of potentially habitable exoplanets.