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18 September 2019
New study suggests gigantic masses in Earth’s mantle untouched for more than 4 billion years
Ancient, distinct, continent-sized regions of rocks, isolated since before the collision that created the Moon 4.5 billion years ago, exist hundreds of miles below the Earth’s crust, offering a window into the building blocks of our planet, according to new research.
11 December 2013
Seismologists showcase model for profiling underground nuclear blasts
Since the Comprehensive Nuclear Test Ban Treaty (CTBT) opened for signatures in 1996, there has been a growing interest in monitoring for underground nuclear test explosions. When a nuclear bomb goes off underground, it produces enough force for seismographs to detect it.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.