Live Science15 小时
Equator quiz: Can you name the 13 countries that sit on Earth's central line?
There are 13 countries that sit on Earth's equator. Can you get them all in 5 minutes? If so, how fast can you do it?
The incredible island in Africa that is 'heaven on earth' but 'no one travels to'
Holidaymakers are spoiled for choice when it comes to beautiful islands off the continent of Africa. Mauritius, Seychelles, ...
earth20 小时
Earth's oceans are rapidly changing colors, and it's too late to stop it
Over the past 20 years, scientists have observed a widespread shift in the color of our oceans, signaling big changes beneath ...