The Hubble was Almost a $15B Disaster

The Hubble Space Telescope, launched in 1990, faced initial challenges due to a flawed mirror. However, a series of servicing missions, starting in 1993, corrected these issues and extended Hubble's operational life. These missions involved complex spacewalks and innovative solutions, such as the installation of corrective optics. Despite the retirement of the space shuttles, Hubble continues to operate, but it faces eventual deorbiting between 2028 and 2040. The telescope's legacy includes significant scientific achievements and breathtaking images, made possible by its serviceability and the dedication of spacewalking astronauts.

What was the main issue with Hubble's mirror when it was first launched?

• It was too small.

• It was polished to the wrong shape.

• It was made of the wrong material.

• It was not reflective enough.

Why was Hubble placed in low Earth orbit?

• To reduce the cost of launching.

• To get a better view of distant galaxies.

• To be easily accessible for repairs.

• To avoid atmospheric drag.

What was the purpose of the Corrective Optics Space Telescope Axial Replacement (COSTAR)?

• To enhance Hubble's power supply.

• To upgrade Hubble's communication systems.

• To correct the spherical aberration in Hubble's images.

• To replace Hubble's solar panels.

What was one of the major tasks completed during the first servicing mission?

• Adding new solar panels.

• Upgrading the shuttle's robotic arm.

• Installing a new camera.

• Replacing the entire telescope.

How many scheduled servicing missions followed the first one?

• Two

• Three

• Four

• Five

What challenge does Hubble face after the retirement of the space shuttles?

• Reduced communication with Earth.

• Increased exposure to space debris.

• Lack of periodic orbit boosting.

• Inability to launch new instruments.

What is the expected fate of Hubble without further servicing?

• It will continue to operate indefinitely.

• It will be deorbited safely.

• It will crash into the Moon.

• It will eventually deorbit due to atmospheric drag.