WONDER #596: What Is a Black Hole?

Question 1 of 3

A black hole forms when a __________ collapses.

  1. planet
  2. comet
  3. asteroid
  4. star

Question 2 of 3

When was the first photograph of a black hole taken?

  1. 1900
  2. 1999
  3. 2019
  4. There has never been a photograph taken of a black hole.

Question 3 of 3

The center of a black hole is called a _____________.

  1. pit
  2. singularity
  3. vacuum
  4. galaxy

Check your answers online at https://wonderopolis.org/wonder/What-Is-a-Black-Hole.