2 ms·
Universe is only 13 billion years old, life on Earth started ~4.5 billion years ago, and the travel times are pretty long. Even if DNA came from outer space, i
by axusgrad 15y ago
Universe is only 13 billion years old, life on Earth started ~4.5 billion years ago, and the travel times are pretty long. Even if DNA came from outer space, it would have had to start somewhere. At some point it must have developed from inorganic components.
- srl 15y agoThe current theory is that the organic material actually originated on the asteroids themselves - on a class known as "CM2 Meteorites". (http://www.nasa.gov/topics/solarsystem/features/dna-meteorites.html http://www.nasa.gov/topics/solarsystem/features/dna-meteorit... - last couple of paragraphs) Also according to that article, we've successfully reproduced the process of creating organic matter from inorganic matter.