A massive dust plume from the Saharan desert will make sunsets especially stunning in the U.S.
Air quality could reach dangerous levels across a wide chunk of the continental U.S. and Caribbean this weekend as a rare, giant Saharan dust storm reaches the U.S.
Alaska's Okmok volcano eruption in 43 B.C. had far-reaching impacts on climate in the Mediterranean, leading to famine and social disruption in the Roman Republic.
The US Senate intelligence committee plans to impose new rules on how the Department of Defense (DOD) shares information about UFOs, and to demand a public report on what the DOD knows so far.
Most diamonds originate at the bottoms of tectonic plates. But the giant blue Hope and Cullinan diamonds may have originated far deeper within the planet.
A suite of new maps reveal the lost, undersea continent of Zealandia in more detail than ever before.
A "Godzilla dust cloud" from the Sahara Desert that's heading toward the United States this week is the largest and most concentrated dust cloud of its kind in the past 50 years.
A powerful magnitude 7.4 earthquake struck the southern coast of Oaxaca, Mexico this morning, killing at least one person.
The Siberian town of Verkhoyansk just recorded a 100-degree Fahrenheit day — the hottest in Arctic history.
Atmospheric scientists sampled the most pristine air on Earth, just above the Southern Ocean. They found some surprises.
Using thousands of seismic wave recordings, researchers mapped the mysterious 'blobs' deep below the Pacific Ocean and found they are even bigger than imagined.
Massive, underwater rivers have been discovered hidden off Australia's coasts by robotic ocean gliders.
Aerodynamic slats newly installed on the Golden Gate Bridge produce a loud hum on windy days, as San Fransiscans learned this past weekend.
Twenty-two thousand tons (20,000 metric tons) of oil products leaked from a Russian industrial power plant into an Arctic river on May 29. It could take decades for the region to recover.
Streaming video from NYC offers a stink-free view of the notoriously malodorous corpse plant in bloom.
An underwater plateau near New Zealand was likely created by the 'largest volcanic outpouring' in Earth's history, a new study suggests.