Some stars collapse into black holes at the end of their life cycle.
Fact #1624
More Space Facts
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1848 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1870 · Space
The Bell Labs experiment led to the discovery of the cosmic microwave background.
Fact #1021 · Space
Mercury has extreme temperature differences.
Fact #147 · Space
Project Mercury was the first U.S. human spaceflight program.
Fact #1074 · Space
The light you see from some stars today began traveling before humans existed.
Fact #1808 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1819 · Space
There are rogue planets drifting through space with no star at all.
Fact #1781 · Space
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