scientists :someone who systematically gathers and uses research and evidence, to make hypotheses and test them, to gain and share understanding and knowledge

Sediment :can consist of rocks and minerals, as well as the remains of plants and animals.

Curiosity: desire to know

Microorganisms: an organism that can seen only through a microscope.

ancient: very old.

Regardless of the response, it will provide profound insights into the origins of life on Earth.