NASA announced this week that frequent blasts of particles from the sun turned Mars from a warm, breezy world covered in vast oceans into a cold, desert wasteland.
As the drought in Mexico caused the Nezahualcoyotl reservoir to drop over 80 feet, a mid-16th century church emerged. The Temple of Quechula has been submerged for nearly 50 years, and will disappear again soon as the waters rise.
This fallstreak hole formed over eastern Victoria, Australia. Airplanes passing through the cirrocumulus or altocumulus clouds freeze the water droplets inside, punching a hole that can look like this.
Scientists discovered a new raptor species in North Dakota. The 17-foot-long creature is the largest specimen unearthed with feathers on its wings.
This map shows carbon emissions levels across the US. Red bars show where they come from electricity, green bars show non-electricity sources, and yellow/orange are a mix of the two.
The extremely rare Omura's whale has been recorded on film for the first time by marine biologists off the coast of Madagascar.
A massive gash across the southern foothills of Wyoming's Bighorn Mountains was likely caused by a landslide, geologists concluded.
A study from NASA concluded that Antarctica has been gaining 82 billion tons of ice per year over the last decade. But these results contradict the overwhelming evidence that the continent has been melting due to climate change, and the results have been mired in controversy.
Had the White House approved Keystone XL, 54,000 square miles of pristine Alberta wilderness may have been razed to feed it with oil from tar sands. Instead, President Obama announced today, they've killed the project.
A giant 'tsunami cloud' swept over Sydney, Australia following heavy rain and strong winds.
Though they look pretty different, Brussels sprouts, broccoli, cauliflower, kohlrabi, kale, and cabbage all come from the wild mustard plant.
A Colombian man's tapeworm got cancer, and gave it to him, marking the first time contagious cancer was reported in humans.
Scientists discovered that unusual weather conditions caused by climate change turned a normal bacteria that lives in the stomach of the saiga antelope deadly, killing about half the species this spring.
The US has the most airplane accidents and fatalities, which is partly because it's the busiest commercial air travel market on the planet. Plane accidents have been decreasing since the 2000s, though.
It turns out that mountain goats aren't even goats — they're in the antelope family. Check out more strange facts about these unique mountain-climbers.
Nearly 20% of the Amazon has been cut down in the last 40 years, which is more than what was lost in the previous four centuries. Explore the Amazon with these incredible photos.
American and Russian astronauts have completed over 180 spacewalks in the 15 years that the International Space Station has been in operation. November 2 was the station's official anniversary date.
