Mob cleans tsunami debris, NASA finds millions of black holes, 'SpongeBob fungus' discovered, and more.

Water wars grip Texas, armadillos advance, snow boosts killer fungi, and more.

Summer starts today, seas in dire straits, U.S. nuke leaks revealed, and more.

Human gene has 'sixth sense,' mining linked to birth defects, 'Cars 2' vs. Big Oil, and more.

Floods may hit Calif. next, study ranks fattening foods, alien ocean found, and more.

Experts warn of gas bubble, floods threaten nuke plant, lost penguin in rehab, and more.

BPA emasculates mice, floods and fires near nukes, home wind power grows, and more.

Nuclear smoke at Los Alamos, space junk threatens astronauts, and more.

California puts cap-and-trade on hold, scientists discover brightest object ever found, and more.

Yellowstone oil spill festers, autism linked to RXs, shuttle crew arrives for last launch, and more.

EPA readies new air rules, dust storm hits Phoenix, giant wombat found, and more.

Oil spill raises pipeline doubts, Atlantis crew teases surprise, grizzly kills hiker, and more.

Space junk haunts shuttle, heat wave hits U.S., critics boo 'Zookeeper,' and more.

Drought grips U.S., GOP wages battle of the bulb, fish uses tools, and more.

New space race starts, GOP loses bulb battle, dirty socks fight malaria, and more.

CO2 capture on hold, lost 'rainbow toad' found, rare cats endure war, and more.

U.S. bakes in heat wave, beef scare sweeps Japan, BP spills oil in Alaska, and more.

Last shuttle heads home, pine trees in peril, EPA sued over L.A. smog, and more.

NASA eyes asteroid, U.S. science smarts criticized, ethanol tied to price spikes, and more.

Space shuttle era ends, heat wave bakes U.S., Kenya burns ivory, and more.

Record 'dead zones' plague U.S., new heat wave likely, toxic thaw in Arctic, and more.

Fires to reshape Yellowstone, GOP pushes pipeline, hints of 'God particle' seen, and more.

U.S. eco-activist sentenced, cougar walks 1,500 miles, EPA delays ozone rule, and more.

The mob vs. wildlife, GOP vs. EPA, tequila vs. corn ethanol, and more.

Key fish in crisis, rhino wars escalate, rescued penguin to be released, and more.

U.S. suffers record heat, lethal radiation in Japan, 'unicorn' plant at risk, and more.

Amazon damage rises, heat wave roasts U.S., new proof of 'multiverse,' and more.

U.S. wolves in crosshairs, Earth's moon may be 2 in 1, cyclone hits Haiti, and more.

Economic rut spurs ecological rush, EPA vs. 'glymes,' icebergs vs. drought, and more.

EPA may delay ozone rule (again), Japan hid radiation info, DNA traced to meteorites, and more.

Big rigs get mpg boost, electric car goes solar, supermice rise in Europe, and more.

'Huge' step in cancer fight, Mars rover sends new pics, actress boosts alien hunt, and more.

Schools save energy, E. coli spurs beef recall, Europe vs. Asia on rhinos, and more.

Cities adapt to climate shifts, oil fouls North Sea, walking lengthens lives, and more.

Arctic oil worries natives, school lunches get real, sleeping bears still trouble, and more.

The Hudson's Bay Company is established, and Centralia residents fight eviction.

Whether you're a 'leaf peeper' or just looking for some fantastic photos, here's how to get the most out of the season's splendor.

Video shows two people skating on freshly frozen ice in Alaska, and one of them has a special reason to savor the adventure.

Residents of Bougainville voted overwhelmingly to become independent from Papua New Guinea.

New Zealand opened its 10th Great Walk called Paparoa Track, a 3-day, 34-mile hike across beautiful terrain.

People are freezing their hair in style for the International Hair Freezing Contest.

The Via Francigena is a 1,250-mile trail that passes through England, France, Switzerland and Italy.

Beautiful cherry blossoms begin to frame the historic buildings in Washington, D.C., signaling spring has sprung.

The island nation of Niue may be the best place in the world to soak up a starry night.

It's hard to get a read on Polaris because it's too bright for our equipment. Plus, other cool facts about the North Star.

The celestial object C/2019 Y4 or ATLAS may be visible to the naked eye by May. It was only just discovered in 2019.

There's plenty to see in the April night sky, from approaching new Comet ATLAS to the Lyrid meteor shower.

The highly anticipated successor to the Hubble Space Telescope is scheduled to launch in spring 2021.

Researchers pored over historical accounts to crack the case of a 1,400-year-old light show.

Mark your calendars now for the Great North American Eclipse of April 8, 2024.