Ancient fossils found in meteorite.
A newly published research paper reveals an analysis of fragments of a fireball that appeared in the sky over Sri Lanka late last year. Researchers at Cardiff University analysed many samples collected in the following days, and after ruling out terrestrial contamination on three different pieces, have found carbon-rich microfossil structures within the rocks.
According to the team, their analysis “provides clear and convincing evidence that these obviously ancient remains of extinct marine algae found embedded in the Polonnaruwa meteorite are indigenous to the stones and not the result of post-arrival microbial contaminants”.
Although the research shows the stone pieces came from space, the paper could not reveal for certain where they originally came from. In fact they could be from Earth - a remnant of one of many asteroid impacts in Earths history which eject rocks into space. This is unlikely, however, as one of the structures found on the stones is so extremely long and thin it seems to have been formed in a low-gravity, low-pressure environment.