Although oxygen is now the most abundant element in our oceans and our atmosphere, comprising about 88.8 percent and 23.1 percent of the mass of the two, respectively, this wasn’t always the case. In ...

As negotiations over slowing climate change unfold at the COP27 climate summit in Egypt, a group of scientists and conservationists is pushing for recognition of the Angolan Highlands as a vital ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Imagine an entirely ...

This is a family story that covers 30 years in the life of the Freytag family, narrated by grandson Robert. When his grandfather returns from Russia in 1949, he becomes part of the German "economic ...

The moon's surface may be more than just a dusty, barren landscape. Over billions of years, tiny particles from Earth's atmosphere have landed in the lunar soil, creating a possible source of ...

The Earth has been bathed in this flux of solar energy for billions of years. All life on this planet is powered by the sun. The fossil fuels we now primarily use are essentially the deposited remains ...

In a peer-reviewed analysis, scientists quantify amino acids before and after our “last universal common ancestor.” The last universal common ancestor (LUCA) is the single life form that branched into ...