that the body contained deposits of organic compounds. At first, it was hypothesized that these were deposited by comet or asteroid impact, but a new analysis of the data has suggested that ...
One leading idea is that space rocks such as comets and asteroids delivered water ... These small worlds can contain things such as rubble, ice and organic material as they fly through space.
Dark comets may play a critical role in Earth’s history. Some researchers theorize that these objects could have delivered water and organic materials essential for life during the planet's ...