24 April 2015, 04:20 PM ET
Peering into the planet's tiniest ecosystems, under rocks and in our guts.
24 April 2015, 12:57 PM ET
A United Nations study shows that the United States ranks 15th in happiness.
24 April 2015, 06:54 AM ET
Earthquakes threaten roughly half the U.S. population, or more than 143 million people, a new study finds. That number rises when Hawaii, Alaska and Puerto Rico are included.
23 April 2015, 02:02 PM ET
A giant blob-shaped reservoir of searing hot rock has been discovered far below the supervolcano underneath Yellowstone National Park, one that could fill the Grand Canyon more than 11 times over.
23 April 2015, 01:03 PM ET
An NSF funded team of University of Utah seismologists has discovered a reservoir of hot, partly molten rock hidden 12-28 miles beneath ellowstone’s supervolcano. The magma could fill the 1000 cubic-mile-Grand Canyon more than 11 times.
23 April 2015, 10:22 AM ET
New earthquake hazard maps released today highlight 17 hotspots where communities face a significantly higher risk of earthquakes.
23 April 2015, 08:12 AM ET
Geologists have finally found the source of an 1872 earthquake that rattled windows from Washington state to Montana.
22 April 2015, 07:02 PM ET
While trash bags floating down streams still cause environmental headaches, packaging has not become the landfill headache Americans once feared.
22 April 2015, 06:32 PM ET
Shattered cave formations in the central and eastern United States preserve one of the longest records of powerful earthquakes in these regions.
22 April 2015, 02:50 PM ET
A flawless, 100-carat diamond sold for $22.1 million at an auction at Sotheby's in April.
22 April 2015, 02:47 PM ET
22 April 2015, 02:40 PM ET
Researchers at Duke University are using 3-D imaging, sensors, digital cameras and more to measure the forces inside materials like sand, soil and snow.
22 April 2015, 01:00 PM ET
The inch-long species, scientifically named Hyalinobatrachium dianae, joins Costa Rica's 13 other glass frogs.
22 April 2015, 11:08 AM ET
From conserving natural resources to fighting food waste, here are five ways to get kids involved in Earth Day.
22 April 2015, 07:45 AM ET
Earth Day is a time to celebrate and protect this pale blue dot we call home. But some of its crown jewels may not always be there. Here are 10 amazing places to visit before it's too late.
22 April 2015, 07:02 AM ET
Today, people around the world will celebrate the 45th Earth Day. To mark the occasion, we here at Live Science chose some of our favorite photos of our home planet.
21 April 2015, 05:03 PM ET
Earth Day is an annual event, observed on April 22, that celebrates the planet's environment and raises public awareness about pollution.
21 April 2015, 04:06 PM ET
Human activities greatly outstrip volcanoes as the world’s leading carbon dioxide producers, raising sea levels, drying forests and altering animal habitat. Watch ‘Secrets of the Universe’ on Hulu. http://www.hulu.com/secrets-of-the-universe
21 April 2015, 03:32 PM ET
A massive, 100-carat diamond is going on auction today at Sotheby's in New York.
21 April 2015, 07:36 AM ET
Two terrifying hurricane names, Isis and Odile, were dropped from the Pacific storm list for 2016.
20 April 2015, 11:02 PM ET
Earthquakes occur every day, but most people don't notice the small ones. Here's what causes earthquakes.
20 April 2015, 08:08 AM ET
A new set of 56 interactive maps estimates public opinion on climate change across the United States from the national to county level.
17 April 2015, 04:36 PM ET
The first three months of 2015 set new global heat records.
17 April 2015, 06:17 AM ET
Jane Goodall, the British primatologist who gained worldwide fame for her studies of wild chimpanzees in East Africa, greeted a packed audience here at the Brooklyn Academy of Music last night (April 15) with a series of apelike howls.
14 April 2015, 07:25 AM ET
An image, released by NASA's Earth Observatory, shows pulses of laser light hitting Arctic sea ice — the ice that forms and floats in Arctic waters.
14 April 2015, 07:19 AM ET
Even planets can get a bad case of tinnitus, according to a new study that explains Earth's mysterious, never-ending hum. Turns out, ocean waves are the culprit behind these mysterious tremors that make the Earth ring like a bell.
10 April 2015, 05:01 PM ET
Scientists have shown that jiggling GPS-equipped phones could someday deliver early warnings of earthquakes.
10 April 2015, 01:44 PM ET
Two hundred years after the biggest volcanic blast in recorded history, scientists have ranked the countries most at risk of another deadly eruption.
10 April 2015, 12:53 PM ET
Here are the countries most at risk of a deadly volcanic eruption, according to an international team of experts known as the Global Volcano Model network.
10 April 2015, 11:19 AM ET
New geologic evidence suggests the Isthmus of Panama emerged from the sea up to 15 million years ago, millions of years earlier than thought.
10 April 2015, 07:52 AM ET
A warm blob of water squished into a patch in the Pacific Ocean may be to blame for the weird weather the United States has experienced this year.
09 April 2015, 02:00 PM ET
Death by acid was the key killer in Earth's biggest mass extinction, some 251 million years ago.
09 April 2015, 11:32 AM ET
Scientists are working to unravel the mystery of a methane blob over the Four Corners region of the U.S. Southwest. The hot spot, first detected from space, contains a significant amount of the greenhouse gas.
09 April 2015, 08:51 AM ET
A pregnant giraffe at the Dallas Zoo is expected to give birth any day now, and the momentous occasion will be broadcast live online.
09 April 2015, 07:38 AM ET
A powerful portrait of plate tectonics took the top prize this year in NASA's annual photo tourney, called Tournament Earth.
09 April 2015, 07:35 AM ET
Each year, NASA's Earth Observatory runs its own March Madness contest at the same time as the basketball tourney, pitting the year's best Earth images against each other in a online contest. Here are the top eight, as selected by popular vote.