David Bressan is a professional geologist and science blogger interested in how the Earth’s past influences society and daily life today. From 2011 to 2014, his geology blog was hosted by Scientific American and now, for almost one decade, by Forbes. He covers unfolding
NASA Study Finds Surprising Link Between Magnetic Field And Earth’s Oxygen Levels
For 540 million years, Earth’s magnetic field has correlated with fluctuations in atmospheric oxygen, according to a newly released study.
Canada Home To Earth’s Oldest Rocks, New Study Confirms
A team of Canadian and French researchers has confirmed that Nunavik/Quebec in Northern Canada is home to the oldest known rocks on Earth, dating back over 4.16 billion years.
Rare Gemstone Uncovers Trade Route Between Medieval Europe And Sri Lanka
A medieval ring holding a rare sapphire points to a long-distance gemstone trade between Europe and Sri Lanka over 700 years ago.
Was The U.S. Strike On Iran’s Nuclear Facilities Dangerous? A Geologist’s Perspective
Since Saturday’s U.S. aerial strikes in Iran, many have expressed concern about bombing nuclear sites, warning of potential radioactive contamination, environmental risks and serious health effects.
How Bunker-Busting Bombs Work — A Geologist Explains
The U.S. has conducted aerial strikes on three Iranian underground sites, using for the first time massive bunker-busting bombs.