Astronomers Have Found Life on Another Planet, But What Does This Mean?
The puzzle.
In our galaxy, the Milky Way, there are 100 billion stars, and more than 100 billion planets spinning around stars. Our sun has eight planets. What are the odds that our planet, earth, is the only one with life? One chance in 100 billion, so it’s very unlikely. To say this another way, … More “Astronomers Have Found Life on Another Planet, But What Does This Mean?”
A new telescope may tell us about how the universe began.
Civilization as we usually define it began about 10,000 years ago. Egyptians lived in towns and cities 7,000 years ago. China was making engraved pottery at that time.
The homo species that is our lineage emerged about 2 million years ago in Africa. The dinosaurs became extinct 65 million years ago after dominating the earth … More “A new telescope may tell us about how the universe began.”