Interstellar objects have passed through our solar system.
Fact #1604
More Space Facts
The Moon's surface temperature varies dramatically.
Fact #299 · Space
A day on Mercury lasts longer than a year on Mercury.
Fact #102 · Space
The Wow! signal was a strong radio signal detected in 1977 that has never been fully explained.
Fact #1593 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1865 · Space
Asteroids vary widely in size and composition.
Fact #1631 · Space
Comets are made of ice, dust, and rocky material.
Fact #33 · Space
The Voyager probes have traveled beyond the heliosphere.
Fact #1028 · Space
The Earth orbits the Sun once every year.
Fact #296 · Space
Want more facts?
We have over 11,491 facts across 15 categories.