Humans could become a truly interplanetary species within 200 years, physicists claim

Neanderthals and Homo Sapiens Shared This Cave 50,000 Years Ago

The amount of heat we have put in the world's oceans in the past 25 years equals to 3.6 billion Hiroshima atom-bomb explosions.

Human Skull About 8,000 Years Old Is Found in Minnesota River