Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1995 Jun;4(3):34-40.

The biosphere below

  • PMID: 11542929

The biosphere below

D Grossman et al. Earth (Waukesha). 1995 Jun.

Abstract

More than a mile below Earth's surface, tiny creatures thrive in searing heat and crushing pressure. Scientists think these microorganisms might teach us about the origins and evolution of early life.

PubMed Disclaimer

Similar articles