Ice core may hold answers to mysteries of Earth’s past
This week, uncover some of the oldest ice on Earth, follow a dinosaur highway, learn how Pluto sealed the capture of its moon ...
BBC4y
Hands-on challenge: String around the Earth
In the case of our 'string around the Earth' puzzle, the radius is being increased by 15cm, so we need to know that as a fraction of the original radius. So what is the radius to start with?
Futurism on MSN4d
Scan Detects Evidence of "Lost World" Under Pacific Ocean
Scientists say they've discovered evidence of a "lost world" lurking deep below the Pacific Ocean, a surprising finding.