Fact #4
May 23, 2026A teaspoon of neutron star material could weigh about as much as Mount Everest.
Neutron stars are so dense that NASA says just one teaspoon of neutron star matter would weigh about a billion tons on Earth. These objects are the collapsed cores of massive stars, packing up to around twice the Sun's mass into a sphere only about 12 miles wide.
Mini Facts
1
Neutron stars are born after massive stars collapse and explode in supernovas.
2
A neutron star is a dead star crushed into an incredibly tiny, dense ball.
3
Some neutron stars can spin up to hundreds of times per second.