This Galaxy Is in the Midst of Dying | SciShow News

The video explores the characteristics of galaxies based on their colors, focusing on blue and red galaxies. It introduces the galaxy ID2299, which is in a death spiral due to a collision, not interstellar winds. The concept of quenching is explained, where galaxies stop forming stars as gas is ejected. The video also covers the neutron star J1818, a unique object that is both a magnetar and a pulsar, and discusses its unusual speed and distance from its supernova origin.

What characteristic is associated with blue galaxies?

• They are not forming new stars.

• They are forming new stars.

• They are merging with other galaxies.

• They are in the process of dying.

What is the term used to describe when galaxies stop forming stars?

• Merging

• Quenching

• Expanding

• Collapsing

What was discovered about galaxy ID2299?

• It is forming new stars rapidly.

• It is losing gas due to a collision.

• It is a newly formed galaxy.

• It is the largest known galaxy.

What is unique about the neutron star J1818?

• It is the oldest known neutron star.

• It is located in the Milky Way.

• It is both a magnetar and a pulsar.

• It is the largest neutron star.

What is a magnetar?

• A type of galaxy

• A black hole with a magnetic field

• A neutron star with a strong magnetic field

• A star that is forming new planets

What is the main challenge in understanding J1818's origin?

• Its age

• Its size

• Its color

• Its distance from the explosion center

How fast would J1818 need to travel to reach its current position if it were 5,000 years old?

• 5% the speed of light

• 0.1% the speed of light

• 10% the speed of light

• 1% the speed of light