Outer Space

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Mysteries of Space : Instant Guide
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

 
Mysteries of Space : Instant Guide
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

 
Mysteries of Space : Instant Guide
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

 
Mysteries of Space : Instant Guide
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

 
Mysteries of Space : Instant Guide
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

 
Mysteries of Space : From our friends at Mental Floss
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

 
Mysteries of Space : Instant Guide
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

 
Mysteries of Space : Instant Guide
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?

 
NASA : Instant Guide
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?

 
Mysteries of Space : Instant Guide
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

 
NASA : Burning Question
One of the first steps taken on the moon by Neil Armstrong and Buzz Aldrin in 1969.

Did Neil Armstrong mislead the world about his 'one small step' line?

The famed quote wasn't quite so spontaneous after all, at least according to the late astronaut's brother

 
Mysteries of Space : Instant Guide
In the event that asteroids were barreling toward Earth, we'd need to "find them before they find us," says one expert.

How we'd really deal with an Armageddon-sized asteroid

Hint: We probably wouldn't nuke it

 
NASA : Instant Guide
Buzz Lightyear… is that you?

NASA's next-generation spacesuit: Inspired by Buzz Lightyear?

The space agency reveals a prototype for its first new suit in 20 years. And it looks awfully familiar...

 
Mysteries of Space : Instant Guide
NASA's Cassini spacecraft snapped this photo of Saturn while it was in the planet's shadow.

What the dark side of Saturn looks like

NASA's Cassini spacecraft captures the gas giant from an unusual angle, making for one haunting photograph

 
NASA : Best Video
"It always amazes me how city lights in the United States just suddenly stop west of the central time zone," says Phil Plait at Slate.

WATCH: Eerie video of Earth's glowing cities — from space

Behold: "Black Marble"

 
NASA : Instant Guide
Three generations of Mars rovers, including an early version of Curiosity (right).

Next up for NASA: Another rover on Mars by 2020

The space agency plans to follow up Curiosity with a shiny new space lab within the next decade

 
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