Recent discoveries using The Paranal Observatory located in the Atacama Desert in the northern part of Chile have led astrophysicists believe that carbon-based molecules that once floated in interstellar space  were present in the cloud of dust and gas from which our solar system formed, providing the raw materials for life on Earth. These molecules have been observed throughout our galaxy, which is one reason why many believe conditions may also be ripe for life in other parts of the Milky Way, and in billions of galaxies beyond.

By seeking out dusty galaxies – where organic molecules may form in greater abundance – galaxies similar to our own, but at an earlier stage of their evolution, astronomers hope to work out how long these molecules have been abundant in the universe, and therefore how long the conditions suitable for life as we know it have prevailed.