Albert Einstein was famous for many things, but his greatest brainchild is the theory of relativity. It forever changed our understanding of space and time.
Seven thousand year-old rock paintings in the Sahara desert have, somewhat serendipitously, helped uncover evidence of ancient lake beds.
Microbes in Yellowstone's hot springs may be living analogs of the primordial microbes that constructed the oldest rock fossils on Earth.
The identification of molecular fossils from algae in the so-called K-P boundary point to a very fast recovery of these organisms following the meteorite impact that killed the dinosaurs.
The rise of oxygen on early Earth may have been caused by a microbial changing of the guard between methane-producers and oxygen-producers.
The body is full of elements. But just which are essential and which are not is still not completely sorted out.
Despite our addiction to oil, we are not completely clear on how it gets cooked up under the ground.