Even the balmy tropics may have once been crushed by colossal masses of ice.
Snowball Earth theory gets a boost from Colorado rock findings Tava sandstone formation provides key evidence for global ice ...
A supernova close enough to Earth could strip the ozone layer and cause mass extinction, but no immediate threat exists.
But before Darwin published his groundbreaking work in 1859, other scientists were already trying to explain the diversity of life on Earth. One such scientist was Jean-Baptiste Lamarck, a French ...
According to a new study that was published in the journal Earth and Planetary Science Letters, Earth may have once had rings ...
An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a sun-like star, ...