Are we all aliens? Research suggests that some of the building blocks of human life come from beyond Earth, perhaps making us Earth’s true extraterrestrial invaders.
Humans were ‘built in space’ claims new study
Interstellar: The chemicals that make life possible could well have arrived on a meteor or a comet. Glossary
Extraterrestrial - Anything from outside Earth.
Elements - Simple substances making up everything, substances that cannot be broken down into smaller parts.
Amino acids - Organic compounds which form the basic constituents of proteins.
Proteins - A kind of molecule that drives all biological processes. They make up around one-fifth of our total body mass and without them our bodies could not function. They fold into 3D shapes, making them extraordinarily complicated as a whole.
Subjugate - Forcefully bring under control.