Study shows fuel efficiency hasn't changed much since 1923, but emissions are way down.

Mars and back on a tank of fuel? Ion drive could revolutionize space travel.

Cheap gas may bolster spending, but it also drivers consumers to buy less fuel-efficient vehicles.

Going for the guzzlers when oil prices are cyclical simply isn't smart.

NASA's New Horizons spacecraft discovered Pluto's staggeringly diverse terrain, and scientists are only now starting to dig into what it could all mean.

'Death Star' Vaporizes Its Own Planet: 1st Evidence

Scientists have created a sonic "tractor beam" that can pull, push and pirouette objects that levitate in thin air.

A prototype lunar rover that was sold to a scrapyard and reported by NASA to be lost has now been found.

Look up into the sky this week to see why autumn is the favorite season for many skywatchers.

The hole in the ozone layer over Antarctica is nearing record-breaking size again, scientists say.

New Dwarf Planet In Our Solar System May Be The Farthest One Yet

The strange squeaks, grunts and hiccups made by the black-and-white furballs are actually part of a panda language.

The chiton is a marine mollusk built like a tiny tank can see with eyes made of the same material as its armor.

The padded bumpers remain popular with new parents despite health concerns.

Astronomers think dark matter forms fine-grained but incredibly long streams throughout the universe.

Examining the eyes is an easy way for doctors to have a look at blood vessels' health.

Best-Ever Pluto Photos Show Breathtaking Views of Dwarf Planet

Electromagnetic hypersensitivity may be an ill of the modern age or just a sign of a different condition.

Infant and adult morality rates both dropped in 2014 though overall life expectancy held steady.

Researchers will likely never know what happened to the crew of the Catalina PBY-5.

Poor health, and not unhappiness, was the true cause of early death, the researchers said.

Serious expressions were the rage a century ago, but shifts in society changed things.

Angkor Wat Yields Astounding Buried Towers & Spiral Structure

The InSight lander is equipped to study the Red Planet's interior in unprecedented detail.

The glass plates depict solar and lunar eclipses, comets, and even views of binary stars.

Warming trends have spiked in certain areas of the world as we battle against smog.

The newly identified species isn't the only glowing shark in the ocean, but it is the first found in the Pacific coast of Central America.

A lack of social connection may have a negative impact on your physical health, new research suggests.

Event Horizon Telescope will harness the power of 9 telescopes around the globe.

This opposition, which occurs every 2 years, is considered relatively favorable and precedes another event when Mars will be at its closest to Earth all year.

More than 250 earthquakes have struck the state's Southern border since New Year's Eve, and it's not the first time this has happened.

Biologists were surprised to find carnivorous pitcher plants eating vertebrates, which may be a first for North America.

Video: Watch and learn how to make a delicious apricot chicken.

Once isolated to the Central Valley, the hybrid tumbleweed Salsola ryanii is making moves — and fast.

About 16 percent of hot sauces tested from Mexico and South America had lead in them. If you’re concerned about the lead in your hot sauce, try making your own.

The FDA said that the pain reliever can cause rashes, blisters and widespread damage to the skin's surface in rare cases.

Almost 600 dogs have died and thousands more have fallen ill in an outbreak linked to jerky treats made in China.

The use-at-home device that treats migraines with a pulse of magnetic energy has shown significant promise in clinical trials.

Azodicarbonamide is a chemical that's used in foam rubber products, but in the U.S., it can also be found in breads.

Jerky dog treats made in China have been linked to 1,000 dog deaths and illness in three people.

The FDA hasn't confirmed Chinese-made treats are dangerous, but there are concerns the jerky treats have sickened or killed thousands of U.S. pets.

Seven people have died from an outbreak of listeria associated with apples. A California packing company has recalled Granny Smith, Gala and caramel apples.

The backlash from Kraft placing a healthy eating label on its processed cheese singles made the Academy of Nutrition and Dietetics rethink the label’s use.

Lab-grown meat isn't even available yet, but rebranding efforts to make it sound more appealing are well underway.

The FDA is re-evaluating what the term means when its used by food manufacturers, but maybe it shouldn't be used at all.

The new nutrition labels would have updated serving sizes and identified added sugars, but the FDA has put an indefinite hold on them.

When these 7-year-olds are treated to a $220 tasting menu, their reactions are priceless (and insightful.)

Meant to satisfy vegans and carnivores, the shredded organic tofu filling is now available at all Chipotle restaurants.

Restaurant chain shares its "No No List" of ingredients as it switches to foods with ingredients you can pronounce.

Flynn McCarry opens Eureka in NYC where his tasting menu will cost $160 and reservations are sold out.