The Milky Way galaxy contains an estimated 100 to 400 billion stars, many of which host planets in the habitable zone.

Authors

• Person: Not available Organization: Space.com
  The Fermi Paradox - Where are all the aliens? - Space

Sources

• The Fermi Paradox - Where are all the aliens? - Space www.space.com Space.com via serper

Referenced by nodes (2)

• Milky Way galaxy location
• habitable zone concept