The Biggest-Ever Supernova

The video explores the supernova of 1054, observed as a bright guest star in Taurus. It was visible worldwide and later identified as a supernova, creating the Crab Nebula and pulsar M1. The video discusses the nebula's expansion, challenges in dating the supernova, and the mystery of missing mass. Modern astronomers continue to study this phenomenon, revealing insights into stellar evolution and cosmic events.

What was the significance of the guest star that appeared in 1054?

• It was a supernova visible during the day and night.

• It was the brightest star ever recorded in history.

• It was the first star discovered with a telescope.

• It was the first star to be named by Chinese astronomers.

What is the Crab Nebula?

• A galaxy located near the Milky Way.

• A type of star that emits strong stellar winds.

• A constellation in the southern sky.

• A massive cloud of debris and gas from a supernova.

How often do supernovae occur in the Milky Way galaxy?

• Every 40 to 80 years.

• Every 10 to 20 years.

• Every 500 to 1000 years.

• Every 100 to 200 years.

What did 20th-century astronomers discover about the Crab Nebula?

• It is shrinking at a rapid pace.

• It is composed entirely of dark matter.

• It is moving closer to Earth.

• It is expanding at an accelerating rate.

What is one theory about the missing mass of the 1054 supernova's remnants?

• The mass was lost due to a black hole.

• The mass was absorbed by nearby planets.

• The star's stellar wind blew away its outer layers.

• The mass was converted into dark energy.