British researchers claim a stream of space dust could have carried alien organisms to Earth, the Metro reported.
It is possible they feel tiny microbes could have drifted through the void which helped them travel to other planets. Their research raises the probability that tiny bugs from alien worlds may have sparked life on Earth.
Extraterrestrial life could have travelled through the universe on comet and meteors, some experts believe. It is a theory called panspermia,
British researchers have been studying powerful flows of interplanetary dust that can travel through space at up to 44 miles per second. "They calculated that small organisms and ‘bio-particles’ floating high in the atmosphere at an altitude of 93 miles or more could be knocked free of the Earth’s gravity by incoming space dust," the report stated.
They feel if the process occurs in reverse it can bring these alien forms to Earth.
"The proposition that space dust collisions could propel organisms over enormous distances between planets raises some exciting prospects of how life and the atmospheres of planets originated," lead author of the study Professor Arjun Berera, from the University of Edinburgh’s School of Physics and Astronomy, told the Metro. Adding, "The streaming of fast space dust is found throughout planetary systems and could be a common factor in proliferating life."
