How can astronomers determine if an exoplanet has water based on Earth’s geological composition? This is what a recent study ...

Ever wondered what the most abundant element on Earth is? Or how the elements that make up our planet compare to those floating out in the vast universe?

The most common are the chondrites, which have round objects inside that appear to have formed as melt droplets. These comprise 85% of all meteorites found on Earth. Most are known as “ordinary ...

David Bressan is a geologist who covers curiosities about Earth. Research has ... are missing the sedimentary rocks from this time period has been one of the most puzzling features of the rock ...

On Earth, the distribution of elements is complex due to processes that took place during the planet's formation.