535-Alone Or Not
May 10, 2019 ·
2m
In our Milky Way Galaxy alone there are probably 25 billion planets located within the habitable zone of its star where there could be air to breathe and liquid water...
show more
In our Milky Way Galaxy alone there are probably 25 billion planets located within the habitable zone of its star where there could be air to breathe and liquid water on its surface. The search is on for advanced civilizations . The search is on for aliens.
show less
Information
| Author | Dr. Al Grauer |
| Website | - |
| Tags |
Copyright 2024 - Spreaker Inc. an iHeartMedia Company
