Science · ~1 min
One teaspoon of a neutron star would weigh about a billion tons on Earth.
One teaspoon of a neutron star weighs as much as a mountain: a billion tons.
One teaspoon of a neutron star weighs as much as a mountain: a billion tons.: One teaspoon · of neutron star · A mountain · a billion tons
When a giant star dies, gravity crushes its core until protons and electrons fuse into neutrons packed solid. The result: about a whole Sun's mass squeezed into a ball the size of a city, only ~20 km across. Matter that dense means a single teaspoon outweighs a mountain.
A neutron star packs the mass of the Sun into a ball about the size of…
Density is just how tightly mass is packed, and gravity can pack it almost beyond belief. A spoonful of a dead star weighs more than a mountain.
Sources
NASA: Imagine the Universe! (Neutron Stars)
confidence: verified · every bit is fact-checked before it ships