So how do we mark the beginning of this human age?
Hurricane Dorian's track has been tricky to predict with certainty. Here's where it could make U.S. landfall.
It's barely budged over the last several hours and is dumping huge amounts of rainfall on the island of Grand Bahama.
Cedar Breaks National Monument is one of the geological paradises of the Colorado Plateau and well worth consideration for a visit.
This national park in Utah is home to three of the most spectacular natural bridges created by rushing water and jittery tectonic plates.
The hard-to-pin-down track is primarily due to an atmospheric steering wheel, which Dorian lost along its rise to Category 5.
The monstrous Dorian has become the strongest hurricane to hit the Northwestern Bahamas, with sustained winds reaching 180 mph (285 km/h).
Hurricane Dorian is now a "catastrophic Category 5" storm as it approaches the Bahamas in the Caribbean, according to a National Hurricane Center update.
The Saffir-Simpson hurricane only goes up to Category 5. But in theory, winds from a powerful hurricane could blow the scale out of the water, scientists say.
Scientists are still trying to understand how the cycle of ice ages works, especially because human-caused climate change may have permanently broken the cycle.
The monster storm has been getting stronger, but its predicted track moves it a hair away from South Florida.
Hurricane Dorian becomes stronger as it makes its way up the Atlantic toward the Bahamas, according to the latest forecast.
A strong earthquake struck off the coast of Oregon today (Aug. 29), according to the U.S. Geological Survey (USGS).
Hurricane Dorian will likely hit Florida Sunday (Sept. 1) as a Category 4 hurricane, according to the latest forecast from the National Hurricane Center.
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