A reservoir of gold lies hidden in Earth’s core. Scientists say it’s leaking
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more.Gold and ...
Tag: Earth
An astronaut’s awe-inspiring views from life in space
Longtime NASA astronaut Don Pettit, who has ventured to space four times, returned to Earth on Saturday night from the ...
Scientists hail ‘strongest evidence’ so far for life beyond our solar system
A giant planet 124 light years from Earth has yielded the strongest evidence yet that extraterrestrial life may be thriving ...
