
Chapter 1
The birth of a cosmic giant
Chapter 2
Cosmic magnets and beacons
Chapter 3
Cosmic collisions and gold mines
YOUR GOAL
Master of Secrets of neutron stars
Ch 3 · Cosmic collisions and gold mines

hue When two neutron stars merge, they send gravitational waves stretching across the universe.
Fun Fact
Cosmic gold: Most of the gold in wedding rings was likely created in colliding neutron stars.
Glossary
kilonova (noun)
An astronomical event that occurs when two compact objects, such as neutron stars, merge. Observations of the 2017 merger GW170817 confirmed that these events synthesize heavy elements like gold.
An astronomical event that occurs when two compact objects, such as neutron stars, merge. Observations of the 2017 merger GW170817 confirmed that these events synthesize heavy elements like gold.
Quiz
What is the ultimate fate of two colliding neutron stars if their combined mass is too high?
Quiz
What is the name of the scientific detectors in the US that first spotted these spacetime ripples?

