Category: Geology

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.

Sanjoy Som

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.

Using Gas Bubbles in Lava to Predict Ancient Air Pressure Scientists can estimate what the atmospheric pressure was on Earth 2.7 billion years ago, and the findings may help us understand how life formed

Sciworthy Staff

by Sumeet Kulkarni Guest Contributor, BMSIS Young Scientist Program What was the weather like in New York last week? You can look it up on weather.com. What was it like on March 7, 1953, in the pre-internet era? You might be READ MORE

For a Cooler Climate, Just Add Ice Should scientists attempt to slow climate change by intentionally increasing the size of the Greenland Ice Sheet to reflect sunlight away from the planet?

Sciworthy Staff

Should we geoengineer larger ice caps to reflect radiation away from the Earth to cool the climate? Is this a good idea? This article briefly explores these questions, based on the work of Jacob Haqq-Misra of Blue Marble Space Institute of Science.

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.

Sciworthy Staff

The amount of trace elements in ocean pyrite correspond to ocean oxygen concentrations at different points in geologic time.

New Cavity Discovered in the Great Pyramid of Egypt Cosmic rays from space allowed scientists to detect a mysterious 4000 year old cavity deep in the Great Pyramid

Sanjoy Som

An international team of scientists recently detected a new cavity in the 4000 year old Great Pyramid of Egypt! The detection method, muon tomography, is non-intrusive and so the discovery still awaits confirmation using more traditional techniques that involve (minimally READ MORE

Lost & Found: The ancient Aitape Skull may be from the oldest known tsunami victim New research suggests that a skull fragment discovered in 1929 came from a tsunami victim some 6,000 years ago.

Graham Lau

Tsunami are among the most destructive natural events that happen on our planet. From the Japanese term meaning “harbor wave”, tsunami occur when large volumes of water are quickly moved about in the ocean, which can be driven by events READ MORE

Life May Be Even Older Than We Thought! Careful analyses of the composition of ancient rocks betrays the presence of life

Sanjoy Som

How long has life been around on Earth? Is life an inevitable part of planet formation? The second question is tough to answer, but if life formed soon after the planet formed, then this has important ramifications for the abundance READ MORE

Caves Host Gooey Biofilms Built by Methane-Eating Bacteria Scientists try to understand the composition of snottites, which are collections of bacteria named for their resemblance to boogers.

Nadia Szeinbaum

Although bacteria are unicellular and may be freely swimming in water or crawling on sediments, in many environments they live in clumps called biofilms. Biofilms are groups of bacteria that grow on a surface and huddle together by sticky carbohydrates READ MORE

Saturn’s Moon Enceladus May Have Conditions For Life In a last scientific hurrah, the Cassini spacecraft has detected that hydrogen is being ejected from the moon’s ice-covered ocean

Sanjoy Som

In a last scientific hurrah, the Cassini spacecraft has detected that hydrogen is being ejected from the moon’s ice-covered ocean.

Could Life Thrive on Radiation? Scientists Say It’s Possible Instead of sunlight, living things may be able to harness the energy from cosmic rays.

Sciworthy Staff

All life on Earth survives because of the sun. Plants use a process called photosynthesis to transfer energy from the Sun’s rays into the sugars that build their stems and leaves. Animals either eat the plants directly, or eat other READ MORE