There are estimated to be over 100 billion planets in the Milky Way alone.
Fact #4586
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More Space Facts
The observable universe is about 93 billion light‑years wide.
Fact #1865 · Space
Venus has surface temperatures hot enough to melt lead.
Fact #215 · Space
The Earth's gravity affects the movement of tides.
Fact #231 · Space
The Milky Way is estimated to contain hundreds of billions of stars.
Fact #270 · Space
The Earth is not perfectly round.
Fact #1719 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1746 · Space
The Earth's rotation speed varies slightly over time.
Fact #237 · Space
The Earth's rotation causes day and night cycles.
Fact #185 · Space
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