Frozen Planet

Science

Icy Origins: How Cold Water Could Have Sparked Life

Geologists refer to the period when Earth was covered in ice as “Snowball Earth.” During this time, thick layers of ice and glaciers extended all the way to equator. Although this ice age might seem harsh for life, it’s surprising that the first multicellular animals appeared during a milder period between ice ages. This discovery raises intriguing questions about how…