Astronomy

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Now Accepting Applications for Mars Colonists

The 2023 move, by the way, is permanent

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You Can’t Throw a Rock in the Milky Way Without Hitting an Earth-Like Planet

A new estimate says there are 17 billion Earth-like planets in the Milky Way

Get Ready for the Best Meteor Showers of 2013

The Quadrantid shower is already behind us, and star gazers will have to wait until April (the start of meteor shower season) for the next big show

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One Family Lived on Mars Time for a Month

While a Martian day is only 39 minutes and 35 seconds longer than an Earth day, the differences quickly add up

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This Is What a Watery Mars May Have Looked Like

Mars once had a vast ocean. What would that have looked like?

An artist’s conception of what an asteroid-catcher might look like.

NASA Wants to Drag an Asteroid Into Orbit Around the Moon

If going to an asteroid is hard, maybe bringing an asteroid to us is easier?

Smithsonian astronomers detect a planet forming from debris around a young star.

The Smithsonian Heads to Hawaii

Coral reefs and radio telescopes make a trip to the tropics more than worthwhile

PHOTOS: Getting Ready for the World’s Largest Radio Telescope

In Chile’s Atacama Desert, astronomers are preparing for a new array that will stretch across 10 miles

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Will We Be Able to Prevent an Asteroid Strike and More Questions From Our Readers

Does lightning strike ships at sea and why does American English differ from British English?

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This Is What the End of All Time Looks Like

Feel like having your tiny human mind blown? Check out predictions for the next 10^10^10^76.66 years

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This Meteor Shower Is So New It Doesn’t Even Have a Name

For the first time, debris from the comet Wirtanen may cross paths with the Earth

Radar images of Toutatis captured during its 1992 flyby.

Get Ready: A 2.8-Mile Wide Asteroid Is About to Swoop Past Earth

A huge asteroid will pass near Earth today, and you can watch it live online

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Why Do We Hiccup? And Other Scientific Mysteries—Seen Through the Eyes of Artists

In a new book, 75 artists illustrate questions scientists haven't fully answered yet

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Elon Musk’s Plan for Mars Is Really Vague But Definitely Expensive

Like any self-respecting space entrepreneur, Elon Musk has a plan for a Mars colony

Three of Jupiter’s moons, Callisto, Io, and Europa can be seen orbiting the gas giant.

Jupiter Just Can’t Decide How Many Moons It Wants To Have

By catching or tossing comets or eating old moons, Jupiter's orbiter-count is constantly in flux

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This Tuesday Morning, Debris of a Dying Comet Should Produce Extremely Bright Meteors

The annual Leonid meteor shower peaks this weekend

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Staring at the Sun: It’s NOT a “Mass of Incandescent Gas”

Solar astrophysicist Mark Weber presents new research about that "miasma of incandescent plasma" at the Air and Space Museum

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Scientists Get The Best Look Yet at a Rogue Planet With No Star

A gas giant, drifting alone with no star to call home, was discovered 100 light-years away

The bright streak shows the ISS passing over Germany.

Having Trouble Finding the ISS in the Night Sky? Have NASA Text You

NASA will email or text you to let you know when the ISS will be in your area

Don Pettit has a lot of cameras.

How Astronauts Take Such Beautiful Photographs in Space

How do astronauts capture such amazing photos? What gear do they use? What problems do they run in to?

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