Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. A new analysis of ancient crystal grains embedded in rocks from the Australian outback suggests that Earth had dry land and fresh water about 4 billion years ago – a time when scientists thought the … Read more
One lesson we all probably remember from primary school is the water cycle. Even if you don’t remember exactly what you learned, you probably have memories of a video or diagram that was so colorful and creative that it made the day a little more fun. For some of us (myself included), it’s honestly hard … Read more
The water cycle that cycles Earth’s most vital resource in an endless, life-giving loop is in trouble. Climate change has disrupted the delicate balance of that cycle, disrupting the way water circulates between the ground, the oceans and the atmosphere. The events of 2023 show how extensive these disruptions have become. From extreme precipitation and … Read more