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Mysteries of Space

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?

 
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

 
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

 
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

 
Mysteries of Space : Instant Guide
A mosaic of Mercury's North Polar Region

Forget Mars: Why Mercury's ice-covered poles may be more important

The hot little planet's north pole is covered in enough ice to bury Washington, D.C., under two and a half miles of frozen water

 
Mysteries of Space : Instant Guide
The small flattened galaxy (center) has a black hole equivalent to 17 billion suns.

Spotted: The largest black hole ever seen

250 million light years away is a black hole with 17 billion times the mass of our own sun

 
Mysteries of Space : Instant Guide
An artist's rendering shows "super-Jupiter," formally known as Kappa Andromedae b.

Discovered: A massive super-planet 13 times larger than Jupiter

Say hello to Kappa Adromedae b, a world so big it defies conventional classification

 
Mysteries of Space : Best Video
An explosion of plasma on the sun's surface during a violent storm on Nov. 16.

Caught on film: Two monstrous eruptions on the sun's surface

NASA releases startling footage of a dual set of solar prominences

 
Mysteries of Space : Slideshow
11 stunning images from Australia's rare total solar eclipse

7 stunning images from Australia's rare total solar eclipse

The natural wonder will hit any given spot on the planet just once every 375 years. On Wednesday, that lucky patch was in northern Australia

 
Mysteries of Space : Analysis
An artist's impression of the free-floating planet CFBDSIRJ2149, which reflects little light because it doesn't orbit a star.

Meet the starless planet that floats alone

Just 130 light-years away from Earth is a curiously independent world at least four times bigger than Jupiter

 
Mysteries of Space : Fact Sheet
The colored swirls indicate the tail end of Saturn's massive storm that occurred sometime between 2010 and 2011.

Saturn's swirling megastorm that's bigger than multiple Earths

In 2010, astronomers spotted the beginnings of a massive maelstrom that has grown to encircle the ringed planet

 
Mysteries of Space : Burning Question
A person is silhouetted against the rising super moon in New Zealand on May 6: Some 4.5 billion years ago the moon and the Earth might have been one.

Was the moon once part of Earth?

Multiple studies add credence to the theory that a piece of our planet broke off billions of years ago, thanks to a massive collision between Earth and another orb

 
Mysteries of Space : Instant Guide
An artist's rendition of the newly discovered planet named PH1, seen in the foreground. The planet is 3,200 light-years away from Earth.

The newly discovered Star Wars-like planet with four suns

Luke Skywalker's home of Tatooine, with its two suns, is suddenly more than just science fiction

 
Mysteries of Space : Fact Sheet
Scientists now believe they know why soil samples collected during the Apollo 11 Moon Mission contain water particles.

Where did the water on the moon come from?

Icy droplets on the lunar surface are more prevalent than we ever thought, and now scientists think they know how the particles got there

 
Mysteries of Space : Photos
This photo was created using NASA's Chandra X-ray satellite to show the death of four stars.

NASA's dazzling X-ray images of dying stars

In a couple billion years, our sun will explode into "amorphous pink blobs" called nebulae, like those pictured here

 
Mysteries of Space : Analysis
Roughly one-third of 55 Cancri e's mass comes from diamonds.

The rare super-Earth made of diamond

40 light years away, astronomers have found a jewel of a planet

 
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