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The DragonFly concept: A 75-pound probe that would fly around prospective asteroids collecting rock samples.

One U.S. company's bold plan to mine asteroids flying by Earth

Deep Space Industries sees dollar signs in the stars

 
A trio of blue-eyed blondes? A bevy or raven-haired young lads? Now, scientists may know.

How DNA can reveal the eye and hair color of the longtime dead

Researchers have used genetic information to determine the appearance of a World War II general

 
Thanks to a new discovery, we're reminded that little old Earth is just a speck on a speck on a speck in this vast universe.

Behold: The biggest object in the known universe

The Huge-LQG stretches 4 billion light-years across at its longest point

 
Comet C/2001 Q4 could be seen by the naked eye in May 2008. This year, another comet may burn even brighter.

The massive comet that may shine brighter than the moon in 2013

Astronomers are geeking out over a streaking object called ISON

 
Building a Death Star? Price tag: $850,000,000,000,000,000.

The White House's nerd-delighting Death Star petition response

Construction would cost more than $850 quadrillion dollars, the White House's Paul Shawcross dryly notes

 
An artist rendering of the different types of planets in our Milky Way as determined by NASA's Kepler spacecraft.

NASA's search for another Earth narrows: Meet our closest twin yet

Meet KOI 172.02 — a potentially wet exoplanet just a tiny bit bigger than our own

 
Don't panic: This is not going to happen.

The 900-foot asteroid flying by Earth on Wednesday

Meet Apophis — a giant space rock named after an Egyptian demon

 
Wrinkly digits work similarly to tire treads.

Why do our fingers wrinkle when wet?

Hint: Think "car tires"

 
The speed of the Star Trek Enterprise is measured by warp factors.

5 fictional ways to go very fast in space

Space operas would be pretty boring without some way to go very far, very fast

 
Wanted: Astronauts for a one-way trip to Mars

Wanted: Astronauts for a one-way trip to Mars

A non-profit organization starts a global search to find candidates willing to settle on the Red Planet... indefinitely

 
The six volunteers of Russia's 520-day endurance mission simulation.

The perils of sleeping in space

What's it like to sleep in a windowless spaceship with five other people breathing down your neck?

 
Do these dust particles make me look fat? A computer-generated image of the International Prototype kilogram.

Fixing the kilogram's weight problem

Forty platinum cylinders are used to standardize measurement around the world. But they've grown heavier over time

 
Participants in a new study found hot cocoa consumed from an orange mug to be sweeter and more aromatic.

How your cup's color changes the taste of your drink

That tasty hot chocolate would be even tastier if you were sipping it out of an orange mug

 
The moon might have a new companion if NASA has its way.

NASA's bizarre plan to drag an asteroid into the moon's orbit

Why send astronauts to a far-off asteroid when we can just bring one back?

 
An astronaut about to exit the International Space Station for a spacewalk: Watch out for radioactive particles!

Are cosmic rays giving astronauts Alzheimer's?

New research suggests space radiation may lead to the degeneration of astronauts' brains

 
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