Comets develop two tails: one made of dust and one of ions, and they always point away from the Sun.
Fact #4077
👍 0 · 👎 0
More Space Facts
The Rosetta mission successfully landed a probe on a comet in 2014.
Fact #1013 · Space
Cosmic microwave background radiation is evidence of the early universe.
Fact #1608 · Space
The Earth's gravity keeps the Moon in orbit.
Fact #283 · Space
There are rogue planets drifting through space with no star at all.
Fact #1781 · Space
The International Space Station orbits Earth every 90 minutes.
Fact #1539 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1789 · Space
The International Space Station travels at about 28,000 kilometers per hour.
Fact #174 · Space
The Moon's gravity affects ocean tides.
Fact #195 · Space
Want more facts?
We have over 11,491 facts across 15 categories.