Number of potentially habitable planets in our galaxy: Tens of billions | Ars Technica
Scientists believe they've spotted the first planet outside the Milky Way - CBS News
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Curious Kids: Are there living things on different galaxies?
There are almost 6 billion earth-like planets present in our galaxy - Tech Explorist
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Planet from another galaxy discovered | ESO
The Hunt for Free Floating Planets in Our Galaxy | PALE RED DOT
Far-Off Planets Like the Earth Dot the Galaxy - The New York Times
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