Humans could be aliens after scientists have claimed that life on Earth came from a planet trillions of miles away.
A new discovery shows that humans could actually be aliens
The chemical "building blocks" of human DNA have been detected for the first time in asteroids that hit the planet billions of years ago.
It means that the seeds of life on Earth were likely planted here from somewhere else in the universe and suggests that humans could be thriving on other planets.
Experts analysed three carbon-rich meteorites, called Murchison, Murray and Tagish Lake, using top techniques.
Professor Yasuhiro Oba, from Hokkaido University in Japan, said: "We found a diverse range of organic materials, including nucleobases - our basic building blocks of life.
"These could have been delivered to the Earth on asteroids, meteorites, comets and interplanetary dust particles four billion years ago when our planet was being bombarded by debris from outer space.
"We believe the influx of these organic played an important role in the evolution of life on Earth.
"This is a very exciting discovery which expands our understanding of how life started."