Scientists found rocks in northern Quebec that may be over 4 billion years old. These ancient stones offer a glimpse into ...
Most of the time, the shape of Earth’s magnetic field is quite similar to that which would be produced by a bar magnet ...
Scientists have shown that Earth’s basic chemistry solidified within just three million years of the Solar System’s formation. Initially, the planet was barren and inhospitable, missing water and ...
The early earth / editor, D.R. Nelson. Earth's formation and first billion years / D.R. Nelson. The early Precambrian stratigraphic record of large extraterrestrial impacts / B.M. Simonson, G.R.