Big Ideas - Episode 23 - Hubble Space Telescope

The video discusses the Hubble Space Telescope, named after Edwin Hubble, and its profound impact on astronomy by revealing other galaxies beyond the Milky Way. Despite initial issues with its mirror, Hubble was repaired and has since provided sharp images and significant discoveries, such as the rate of the universe's expansion and black hole activities. The video also covers the study of Centaurus A, a nearby galaxy with a supermassive black hole, and NASA's plans to extend Hubble's life until 2013, with the James Webb Space Telescope as its successor.

What was the initial problem with the Hubble Space Telescope after its launch?

• It had a faulty communication system.

• Its solar panels failed to deploy.

• Its main mirror was ground incorrectly.

• It was launched into the wrong orbit.

What significant astronomical phenomenon did Hubble help to observe?

• Galactic cannibalism by a black hole.

• The birth of a new galaxy.

• The collision of two black holes.

• The formation of new stars.

What is a major challenge in confirming the existence of black holes?

• Their gravitational fields are so strong that not even light can escape.

• They are too far away to observe.

• They emit too much light.

• Their gravitational fields are too weak.

Why is Centaurus A significant for astronomers?

• It contains the oldest known stars.

• It is the closest active galaxy to Earth.

• It is the largest galaxy in the universe.

• It is the brightest galaxy in the night sky.

What is the main difference between Hubble and the James Webb Space Telescope?

• Hubble can image in infrared, while JWST is limited to visible light.

• Hubble can image in ultraviolet and visible wavelengths, while JWST is limited to infrared.

• Hubble is larger than JWST.

• Hubble is more advanced than JWST.

Until when has NASA decided to extend the life of the Hubble Space Telescope?

• 2020

• 2018

• 2015

• 2013

What are some of the key contributions of the Hubble Space Telescope?

• Photographing the rings of Saturn.

• Detecting planets within our solar system.

• Mapping the surface of Mars.

• Capturing images of star birth and death.