Hubble Science: Black Holes, From Myth to Reality

The video discusses the presence of supermassive black holes in galaxy cores, once considered a myth. It explains the challenges of observing black holes directly and how the Hubble Space Telescope detects them by observing surrounding material. The video highlights the discovery of black holes in many galaxies, changing previous beliefs about their existence.

What was the initial perception of supermassive black holes in galaxies?

• They were considered a mathematical possibility.

• They were widely accepted as real.

• They were easily observable.

• They were known to exist in all galaxies.

How does the Hubble Space Telescope infer the presence of a black hole?

• By observing the movement of material around the black hole.

• By measuring the temperature of the galaxy.

• By detecting sound waves from the black hole.

• By directly observing the black hole.

What is unique about the galaxy M 87 in relation to black holes?

• It is the only galaxy without orbiting material.

• It is the smallest galaxy observed.

• It has a visible ejected jet.

• It has no black hole.

What was the previous belief about the existence of black holes?

• They were known to be in every galaxy.

• They were considered easy to find.

• They were believed to be non-existent.

• They were thought to be abundant.

What is the current scientific belief about supermassive black holes in galaxies?

• They are only found in the Milky Way.

• They are rare and found in few galaxies.

• They are present in most, if not all, galaxies.

• They are a myth and do not exist.