The plant kingdom has a rich natural history all its own.
Dec 16, 2015 12:00 PM ET //
Sep 2, 2015 01:12 PM ET //
A thin layer of bright green slime at the bottom of an Antarctic lake is giving scientists a glimpse at life on Earth 2.4 billion years ago.
Jul 31, 2015 09:44 AM ET //
Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than thought.
Feb 11, 2015 06:37 PM ET //
The Earth's innermost section is different from what scientists expected. Continue reading →
Jan 20, 2015 01:30 PM ET //
Nitrogen may have arrived on Earth in ancient meteorites after the planet had already formed.
Dec 2, 2014 07:00 AM ET //
Sometime in the distant future, the Earth once again will have a massive supercontinent, and today's beachfront real estate will be a lot less desirable.
Oct 27, 2014 02:00 PM ET //
Telltale signs of life have been discovered in rocks that were once 12 miles (20 kilometers) below the surface — some of the deepest chemical evidence for life ever found.
May 30, 2014 11:00 AM ET //
Four-billion-year-old sample suggests modern-day Iceland is our best bet for an example of how Earth's continents first formed.
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