There is a radical idea that Earth was seeded not just with the building blocks of life but life itself.
Does life appear independently on different planets in the galaxy? Or does it spread from world to world? Or does it do both? New research shows how life could spread via a basic, simple pathway: cosmic dust.
A UK team of scientists found organic material and water in a sample of Itokawa, the asteroid the first Hayabusa mission visited over 10 years ago.
According to the model of US researchers, the entire Milky Way (and even other galaxies) could be exchanging the components necessary for life.
According to a recent study, space dust could be what brought life molecules to Earth. This same mechanism could be responsible for the distribution of life throughout the Universe.
