Controversy is swirling, but the new find may be the oldest direct link to life on Earth.
Announcement of the discovery of a 3.7-billion-year-old fossil in Greenland could mean that life on Earth started much earlier than previously thought.
A new study suggests that the dramatic upheaval caused by European colonization of the Americas may have marked the beginning of a new period of geologic time.
During the last ice age, they drifted thousands of miles south from Canada, researchers find.
Researchers have confirmed that a tiny gem found in western Australia is the oldest known piece of Earth, dating back some 4.4 billion years.
New research published this weekend provides the latest fodder for a long-standing debate over when the majestic Grand Canyon was actually formed.
A team of researchers has discovered more information about what causes “supervolcanoes” to erupt, and their findings are unsettling.
A new study finds that so-called “ghost glaciers” – layers of non-erosive glacial ice – have protected Greenland’s ancient landscapes for more than 800,000 years.
Last Friday’s meteor blast recalled the memory of an even more powerful space rock explosion over Siberia: the mysterious 1908 Tunguska event.