Astronomy

A New 3D Map of the Universe Covers More Than 100 Million Light-Years

The map makes infinity seem comprehensible by depicting the structures of galaxy clusters, dark matter and open patches of lonely space

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Spaceships Made of Plastic Could Carry Us to Mars

Plastic is way better than aluminum at blocking cosmic rays

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On Venus It Snows Metal

To add to the list of crazy things about space, is this fact: on Venus, it snows metal

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Teeny Tiny Rock Fragments Testify That a Meteor Caused the Biggest Impact Event in Recorded History

On June 30, 1908, an enormous explosion in a remote stretch of Siberia flattened and bruned nearly 1,000 square miles of forest, totaling around 80 million trees

Even Astronauts Have Accidents

Peeing in space is way harder than you might think

A Galactic GPS System That’s Now in the Works Could Help Our Descendants Navigate Through the Universe

The International Space Station aims to be testing out an interplanetary GPS system by 2017

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This Is an Actual Photo of a Planet in Another Solar System

This is a planet, 300 light years away, as seen through the Very Large Telescope

Lisa Randall is the first female theoretical physicist tenured at Harvard.

Lisa Randall’s Guide to the Galaxy

The famed cosmologist unveils her latest theories on the invisible universe, extra dimensions and human consciousness

Planetary Resources president Chris Lewicki stands next to the Arkyd space telescope.

A Space-Based Telescope for the People Wants Your Support

An asteroid mining company wants your money to put a satellite telescope that you can control into space

As part of the Star Songs project, X-ray emissions from the EX Hydrae system (above, near center)—in which one star pulls matter from its partner—are converted into music.

How to Convert X-Rays From A Distant Star into Blues, Jazz and Classical Music

A vision-impaired scientist, her coworker, and a composer team up to transform light bursts from stars into rhythms and melodies

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The White House And Bill Nye Want You to Come Watch This Huge Asteroid Zip by Earth

The asteroid passes by tomorrow afternoon, and the White House has a pre-game show starting at 2 Eastern

Your Ticket to the Universe, a new book by the Smithsonian Astrophysical Observatory’s Kimberly Arcane and Megan Watzke, features arresting images of the cosmos captured by the Hubble, Chandra and Spitzer space telescopes.

Look Up! Venus, Jupiter and Mercury Conjoin this Evening

Kimberly Arcand and Megan Watzke, authors of "Your Ticket to the Universe," point out a few wonders of the cosmos

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So Long, Kepler: NASA’s Crack Exoplanet-Hunter Falls to Mechanical Failure

Kepler has changed our place in the universe, but now the four-year old satellite is down with a broken wheel

The Hubble Space Telescope

A U.S. Spy Agency’s Leftover, Hubble-Sized Satellite Could Be on Its Way to Mars

What do you do with a spare world-class satellite?

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You’ll Want to Watch Today’s Solar Eclipse Create a Gorgeous ‘Ring of Fire’

Tune in this evening to watch the Moon eclipse Australia's early-morning Sun

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Scientists Just Recorded the Brightest Explosion We’ve Ever Seen

We just saw the longest, brightest, most powerful version of the universe's most massive explosions

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Saturn’s Mysterious Hexagon Is a Raging Hurricane

At the heart of Saturn's hexagon, a giant hurricane

Virgin Galactic’s SpaceShipTwo during yesterday’s test.

Celebrating Nearly a Decade of Richard Branson Almost Sending Us to Space

In 2004, Richard Branson said we'd be in space by 2008. That didn't pan out

A meteor from the Lyrids burns up in the Earth’s atmosphere, as seen from the International Space Station.

Keep An Eye to the Sky: Annual Lyrid Meteor Shower Peaks This Weekend

Late Sunday night and early Monday morning, you may catch the annual Lyrid meteor shower

Artists illustrations of the previously known Kepler 22b, and the new 69c, 62e and 62f line up next to Earth.

Has This Week Been Too Much? Scientists Discover Potentially Habitable Exoplanet

Three new potentially habitable exoplanets may be this week's only good news.

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