Most of Earth’s essential elements for life probably came from another planet
LIFE on Earth was created when a planet smashed into our own in a violent collision that created the moon.
The rogue alien world, nicknamed Theia, left behind alien materials that formed the building blocks for life on our planet, scientists claim.
They argue that most of Earth’s essential elements for life, including carbon and nitrogen, probably came from another planet.
«All the evidence are consistent with a moon-forming impact involving a Mars-sized planet with a sulfur-rich core,» said scientist Dr Damanveer Grewal.
Most space boffins think the moon was created when a planet called Theia hit Earth 4.5 billion years ago.
The enormous collision spewed debris that clumped together and formed our planet’s closest neighbour.
To get a better understanding of the impact, scientists at Rice University used a complex computer simulation of the beginning of life on Earth.
The models tested a variety of different chemical compositions that could have made up Earth and Theia 4.5 billion years ago.
After around 1billion simulations, the team found Earth most likely got the bulk of its carbon, nitrogen and other life-essential elements from a collision with Theia.
Theia was likely a planet that had a sulphur core, as well as carbon and nitrogen at its surface.