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Chinese astronauts, including the country's first female space traveler (left), before liftoff on June 16.

Is China's space program a threat to America's?

The Asian superpower is flexing its muscles with the successful docking of its Shenzhou-9 spacecraft. But China has quite a way to go before it catches NASA

 
Given the principles of evolution, some scientists argue that men prone to baldness should have died off over time.

Why bald men never went extinct: 4 theories

A full head of hair is important: It keeps the body warm, offers protection from the sun, and it's sexy. So how come glabrous men are still around?

 
Guests staying in a pod of Russia's planned space hotel would eat dehydrated food — while orbiting at an average speed of 18,600 mph.

The space race for tourists

After years of delays, the long-awaited dream of commercial flights to space may soon become reality

 
Using advanced laser mapping technology that shoots laser pulses into the ground to create an image, researchers think they may have uncovered Honduras' mythical city — which is supposed to be filled with gold.

Discovered: Honduras' mythical city of gold?

Conquistadors like Hernando Cortes in the 1500s searched endlessly for the ancient city and its purported riches. Now modern researchers think they've found it

 
Two craters on the surface of Mars, color-coded here to highlight their varied terrain, may prove that the planet underwent significant fluctuations in its climate.

Did climate change turn Mars into a dead planet?

Detailed pictures of two sister craters offer proof that the Red Planet may once have been sufficiently moist to support life

 
In Bulgaria, a chunk of iron is found next to a supposed vampire skeleton that dates back to the Middle Ages.

Unearthed: Bulgarian 'vampire' skeletons

Archaeologists in the Black Sea town of Sozopol uncover two 800-year-old skeletons with stakes through their chests

 
An illustration of Mars One's proposed human settlement: The newly created group sees the Red Planet as the "Plymouth Rock" of our near future.

The earnest plan to have a settlement on Mars by 2023

A Dutch group outlines an ambitious multipart strategy to have humans living on the Red Planet in about a decade — if everything pans out

 
AS10, a drink supplement originally designed for astronauts, can now be purchased on health and vitamin websites for $50 for a 25-ounce bottle.

NASA's wrinkle-erasing 'space drink'

With exotic ingredients like cupuacu and yumberry, a new antioxidant-rich beverage helps reverse the withering effects of Father Time

 
SpaceX's successful launch Tuesday morning proves that NASA is no longer the only game in town, and may inspire a new generation of rocketeers.

SpaceX's successful launch: 4 predictions for what's next

The first privately owned spacecraft is making its inaugural delivery trip to the International Space Station, ushering in a new era of space travel

 
If NASA goes into business with SpaceX, the private space company will be expected to make 12 cargo deliveries to the International Space Station over the next several years.

SpaceX's historic launch: By the numbers

On Tuesday the first privately owned spacecraft ever will (again) attempt to blast off and deliver goods to the International Space Station

 
A model of the Starship Enterprise: The iconic Star Trek spaceship may take flight in the real world by 2032 if one determined engineer has his way.

The ambitious plan to build Star Trek's USS Enterprise

One adventurous engineer makes a compelling case to boldly build what no man has built before. Could the crazy thing actually work?

 
The Dragon spacecraft and its Falcon 9 rocket are rolled to the Cape Canaveral, Fla., launchpad for tests ahead of the landmark liftoff scheduled for May 19.

SpaceX: Should we cheer private space flight?

With the first privately-owned spacecraft heading for the International Space Station on May 19, space enthusiasts argue that it's time to stop mourning NASA's decline

 
Tracy Flick, the desperately ruthless overachiever in the 1999 movie "Election," may have just suffered from too much dopamine in her brain, at least judging from new research.

Dopamine: The difference between slackers and go-getters?

A brain neurotransmitter also known as "the pleasure chemical" may play a crucial role in determining a person's work ethic

 
A NASA Hubble Space Telescope image of inferred dark matter that has been tinted blue shows the concentration of dark matter at the center of a galaxy.

The dark matter pelting your body right now: A guide

Groundbreaking research suggests the universe's most mysterious substance is hitting the human body at a much higher rate than previously thought

 
President Obama is left-handed, part of a 10 percent minority whose proportion has remained relatively constant for 5,000 years.

Why so few people are left-handed

Right-handers have long accounted for 90 percent of the population, and scientists may have figured out why

 
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