Refuges Left on a Frozen EarthFrom about 2.4 billion to 2.2 billion years ago, large-scale glacial activity occurred ...
Millions of years ago, continental collisions created enormous mountains in what's now Antarctica. As they eroded, Earth's ...
Is there life elsewhere, or is Earth unique in the universe? This is one of humanity’s great unanswered questions. One way to ...
Geodynamics : the unanswered questions / A.L. Hales -- A global geochemical model for the evolution of the mantle / D.L. Anderson -- Temperature profiles in the earth / O.L. Anderson -- The structure, ...