700 Million Years Ago, The Earth Turned Into A Giant Snowball: Scientist Might Finally Know Why Scientists are still trying to figure out the precise causes that triggered bouts of global cooling, which then turned Earth into a snowball 700 million years ago. Two researchers have a new theory. by Carl Velasco
Science How Did The First Animals Appear On Earth? Algae Blooms May Have The Answer by Katrina Pascual
Science This Event Turned Earth Into A Massive Snowball Some 700 Million Years Ago by Katrina Pascual