Researchers have discovered a jaw-dropping ecosystem of crystal-clear lagoons and salt plains in Argentina's Puna de Atacama ...

The oldest almost universally accepted evidence of life is the 3.48-billion-year-old West Australian stromatolites (layered sedimentary fossils usually formed from cyanobacteria), Keyron Hickman ...

As Earth cools, a crust forms over it. Mounded bacterial formations called stromatolites appear in shallow waters of the early oceans, and small land blocks collide with one another to produce the ...

These are preserved examples of what are called stromatolites. They are created when many millimetre-scale layers of bacteria and sediment build up over time into larger, dome-like forms.