About 3.8 billion years ago existence first sprang up, but researchers have been unable to figure out how it all started. However, the mystery may have just been revealed by scientists who believed life was delivered here from the space. Now, the British boffins have come up with the latest theory on how existence on Earth began and suggested that it could be down to the intrepid alien bugs. Bugs might have flown across the universe, and onto our planet, scientists have said. And bugs from our planet might have made the same journey, flying off of Earth and onto other planets elsewhere in the galaxy.
The team deliberated minute bio-particles could be hitching a ride on space dust which travels through the cosmos at 70 km per second. This theory could even persist in explaining how life began here, suggesting that it was carried from somewhere else in space then bloomed on Earth. Research indicates that these tiny particles could then end up on planets, like Earth, where they arrived and began the process of evolution. Space dust may have transferred extraterrestrial bugs to Earth – or terrestrial microbes to other planets.
They observed that these small bio-particles bouncing high in the atmosphere at an altitude 150 km or more could be banged free of the Earth’s gravitational force by incoming space dust. Finally, these little organisms could travel other planets in the planets orbiting around the sun. The scientists believe that some plants, bacteria and even robust micro-animals called tardigrades are known to be capable of surviving in space. This exact process could occur in reverse, bringing alien bugs to Earth and maybe helping to root life on the planet. The same process could happen in reverse, bringing alien bugs to Earth and perhaps contributing to plant life on the planet, the scientists believe.
Professor Arjun Berera study leader of University of Edinburgh’s School of Physics and Astronomy proposed that: “The hypothesis that space dust collisions could move organisms over vast distances between planets elevates some rousing expectation of how life and the atmospheres of planets emerged. The streaming of fast space dust is found throughout planetary systems and could be a common factor in increasing endurance.”
Formerly researchers have considered that the possibility of comets importing life and impacting asteroids, or the raw ingredients of life, to Earth. However, no proof is found yet that can prove, this idea of Panspermia it was suggested in 1871, but it has more recently assembled current support as the astronomers have discovered that the universe is just full of the organic compounds.