14 August 2015, 07:29 AM ET
A real-estate agent and storm chaser captured a snapshot of a lifetime on Aug. 9, when he photographed a rare duo — an eerie flash of lightning framed by a glorious rainbow — in Tucson, Arizona. Here's how the two phenomena happened.
14 August 2015, 01:02 AM ET
This year's El Niño looks to rank among the strongest on record, with potential U.S. weather impacts.
13 August 2015, 03:29 PM ET
It may seem unusual to pay for something as, well, natural as nature, but a new economic model suggests just that, and it seems to be working, argues Jane Carter Ingram.
13 August 2015, 11:49 AM ET
Forr the first time, scientists have sequenced the genome of the eight-legged rock star, revealing how its complex noggin evolved.
12 August 2015, 07:40 PM ET
People are using up the Earth's resources, and August 13 marks the pivot point for 2015.
12 August 2015, 10:29 AM ET
An accidental breach by an EPA cleanup crew sent 3 million gallons of acidic, heavy-metal-laden water into Colorado's waterways. How do you clean up a river? The answer is twofold: treatment and dilution.
12 August 2015, 10:23 AM ET
Three million gallons of water contaminated with heavy metals and other toxins spilled out of Colorado's Gold King Mine, turning the Animas River a mustard color and contaminating waterways. Here's a look at the toxic spill.
11 August 2015, 12:10 PM ET
The annual Perseid meteor shower is typically the most spectacular "shooting star" display for people in the Northern Hemisphere, and this week, skywatchers could be in for a remarkable show.
10 August 2015, 01:42 PM ET
Beijing has seen explosive growth in recent years, with the physical size of the city quadrupling in just a decade, a new study reveals.
10 August 2015, 01:36 PM ET
NASA needs your help to bolster current earthquake detection technologies, and they’re offering $25,000 to the team that develops the best way to detect an oncoming quake.
10 August 2015, 12:30 PM ET
Some butterfly species could disappear from southern Britain in the next 35 years if climate change and habitat loss continue, according to new research.
10 August 2015, 11:59 AM ET
Photos of butterflies that will likely go extinct by 2050 in southern Britain if their habitats aren't preserved and droughts worsen.
10 August 2015, 07:26 AM ET
A zap of lightning can change the very structure of a rock, new research shows.
10 August 2015, 07:23 AM ET
Australia's Adele Island appears tranquil from space, but this sandy spit is the site of efforts to eradicate an invasive rat population that devastates seabird populations.
07 August 2015, 07:38 AM ET
Giant rocks stacked in seemingly gravity-defying poses could indicate that earthquakes on the San Andreas Fault can jump to another major fault in Southern California.
07 August 2015, 06:00 AM ET
By shifting to carbon-free energy, including nuclear and carbon capture options, runaway CO2 emissions can be quenched, even in developing nations.
06 August 2015, 04:31 PM ET
The earthquake that struck Nepal in April shook in a way that spared many small buildings in the city but devastated those more than two stories high, a new study finds.
06 August 2015, 02:23 PM ET
The devastating earthquake that struck Nepal in April only released a fraction of the energy still trapped in the underlying fault, meaning the area has the potential to host another possibly more powerful earthquake.
06 August 2015, 08:06 AM ET
Orbiting 1 million miles ‘sunward’ of Earth, a four megapixel CCD camera/telescope captured Luna crossing over the Pacific Ocean from the Deep Space Climate Observer’s point of view on July 16th, 2015.
06 August 2015, 07:55 AM ET
The Deep Space Climate Observatory spacecraft recently caught the moon crossing Earth's face in a stunning video that shows off the mysterious lunar far side.
05 August 2015, 11:51 AM ET
Africa looked awash in splotches of dusty pink, vibrant green and a swirl of white clouds in an image snapped Tuesday (Aug. 4) by Europe's newest weather satellite, according to an announcement from the European Space Agency.
03 August 2015, 01:31 PM ET
Ed Bensman, NSF atmospheric scientist, reveals that storms at night depend on daytime predecessors and how they can rumble on for many hours.
03 August 2015, 09:18 AM ET
A recent photo contest highlights images captured by ecologists in the field.
03 August 2015, 07:05 AM ET
The winning photos from a recent ecology photo contest prove that Mother Nature is always ready for her close-up.
31 July 2015, 06:42 PM ET
Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight into chemical energy.
31 July 2015, 06:17 PM ET
New photos taken from space show the significant snow loss this year atop Mount Baker, in Washington state.
31 July 2015, 05:35 PM ET
An art project featuring a live tree that bears 40 different kinds of fruit is more than just a conversation piece. The so-called "Tree of 40 Fruit" — blossoming in a variety of pretty pink hues when completed — is rooted in science.
31 July 2015, 02:51 PM ET
California's rain deficit during its record-setting drought is about one year's worth of normal rain.
30 July 2015, 04:33 PM ET
Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than scientists had previously thought, researchers say.
29 July 2015, 02:07 PM ET
The fiery demise of ancient huts in southern Africa 1,000 years ago left clues to understanding a bizarre weak spot in the Earth's magnetic field — and the role it plays in the magnetic poles' periodic reversals.
28 July 2015, 04:24 PM ET
A female panda in Hong Kong celebrated her 37th birthday today (July 28), becoming the oldest panda in captivity, and setting two new Guinness World Records in the process.
28 July 2015, 01:09 PM ET
"Trudy" the corpse flower burst into bloom at the UC Botanical Garden in Berkeley, California, on Saturday, July 25. These rare plants smell like rotting meat.