Believe it or not, we can (kind of) measure the air pressure of early Earth! Blue-green algae's response to different nitrogen pressures may tell us what fossils to look for and what those fossils tell us about ancient air pressure.

February 13, 2019 by Sanjoy Som Read More

Lasers and Fool’s Gold Give a Glimpse Into Our Ocean’s Past The amount of pyrite in the sea floor gives us an idea of how much oxygen was in the ocean millions of years ago.

January 30, 2018 by Daniel Gregory Read More

September 27, 2017 by Daniel Angerhausen Read More

July 24, 2017 by Nadia Szeinbaum Read More

May 18, 2017 by Jacob Haqq-Misra Read More

April 4, 2017 by Jacob Haqq-Misra Read More

January 30, 2017 by Sciworthy Staff Read More

August 20, 2015 by Tuuli Mäkinen Read More

May 16, 2015 by Sciworthy Staff Read More

October 7, 2014 by Sciworthy Staff Read More