Outer Space
Mars’ Super-Thin Atmosphere May Mean that Flowing Water Was the Exception, Not the Rule
A new analysis suggests that Mars' atmosphere was often too thin to support liquid water
Saturn’s Rings May Be Shredding One of Its Moons to Bits
Or giving birth to a new one
This Skydiver Was Almost Hit by a Meteorite in Mid-Air
No one's ever filmed a meteorite in dark flight
Saturn’s Icy Moon Enceladus May Have a Giant Liquid Water Lake
New proof that Enceladus is a watery world
Felix Baumgartner's Spacesuit From His Death-Defying Stratospheric Jump Joins the Smithsonian Collections
The pressurized suit, parachute and the balloon gondola that allowed Baumgartner to break records goes on view at the Air and Space Museum
Astronomers Just Discovered an Asteroid With Rings
They aren't supposed to be there, but...there they are.
This 6 GB Photo of the Milky Way Is As Stunning As It Is Massive
Over the past 10 years the Spitzer Space Telescope captured this gorgeous infrared panorama of the Milky Way
How Do Astronomers Actually Find Exoplanets?
A handful of ingenious methods have been used to detect the planets too far away for us to see
Could Mini Satellites Provide Free Internet to All?
A venture capital firm plans to make the World Wide Web available to anyone with a WiFi-enabled device
Next Stop: Gas Stations In Space
MIT scientists have a new plan for refueling stations in space
Where in the Solar System Are We Most Likely to Find Life?
A number of interplanetary destinations could harbor extraterrestrial life—finding it could be just a space mission away
The Search for Life Across the Universe
Smithsonian astrophysicist Jeremy Drake explains how the question changed from "if" life will be found elsewhere to "when" and "where"
What Will Extraterrestrial Life Look Like?
Illustrator David Aguilar melds art and science to imagine how alien creatures might adapt to their environments
This Documentary Explores the Lives of Five People Willing to Go on a One-Way Trip to Mars
What drives a person to give it all up and set off into the unknown?
Sub-Orbital Travel Is Going to Make the World Feel Really, Really Small
Our small world is about to get even smaller—for those who can afford to fly sub-orbitally
NASA Wants to Take a Closer Look at the Water on Jupiter’s Moon
Part of NASA's tentative 2015 budget includes planning for a mission to Europa
This Japanese Space Net Could Lower the Odds of 'Gravity' Happening in Real Life
Space is littered with debris, and we really should start getting some of it out of there
That Dark Spot? It's North Korea
In images taken on the International Space Station, the country of North Korea is barely visible at all
Which Animal is the Smartest, How Did Fingernails Evolve and More Questions From Our Readers
You asked, we answered
This Satellite Just Returned From Circling the Sun, But NASA’s Lost the Ability to Talk to It
The style of transmitters that would let NASA talk to the spacecraft were taken out of commission
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