American and European scientists are testing a surprising theory that all comets in our solar system come from a single point in space time, right when planets were still forming around our newly-born sun.

The scientists used chemical models in a small scale survey of some 14 well-known comets to see if their composition could point to a particular point of origin. Surprisingly, it did.

“We did some statistics to pin down if there was a special time or place in our young Solar System, where our chemical models meet the data on comets,” astronomer Christian Eistrup said.

“There was a single model that fitted each comet best, thereby indicating that they share their origin.” (RT)