A new study reveals how ancient plant ecosystems recovered from the End-Permian mass extinction, Earth’s most catastrophic ...

Doomsday scenarios: Every religious belief has its own description of a doomsday scenario, where an apocalypse will bring about the end of all life on Earth, and while scientists largely reject ...

When the Earth is attacked by alien forces, a mass evacuation leads to a small group of survivors crash landing on a planet inhabited by cloaked figures. To get off the doomed planet a green ...