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10 Hubble Images That Changed Astronomy
A Trash-Munching Robot Could Turn Space Junk Into Propulsion
10 Inventions by Thomas Edison (That You've Never Heard Of)
Study Finds Sleepiness Is As Dangerous As Texting While Driving
We Finally Know What Happened to Water on Mars
Astronomers Have Discovered the Oldest Stars Ever Seen in Our Galaxy
Astronauts Almost Killed Their First Flowers.
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The Closest Exoplanet to Earth Was Probably a Ghost
Is Fluoride Actually Bad For Us?
16 Perfectly Recolored Photos From NASA Missions In The '60s And 70s
Cygnus Is the Cutest of the Space Station Cargo Craft.
Scientists Predict the Alps Will Lose 70 Percent of Its Snow by 2100
Ants Communicate by Swapping Spit
Exercises That Will Strengthen Your Attention
8 Unusual Things That Have Fallen Out of the Sky
Britain discovers its 'first selfie': a 4,000-year-old stone carving
11 Weirdest Things Your Brain Does
Take A Look At 'Solar Impulse 2's Epic Journey
The 10 biggest spaceflight stories of 2016
This Supersonic Jet Could Take You From NYC to London in Three Hours
Science Says the Best Kind of Sleep Happens in a Tent
Did Our Hands Evolve to Throw Punches? One Biologist Thinks So
A Huge Gash Just Appeared On the Sun
How Do Antarctic Scientists Eat Fresh Eggs?
Medieval Supernova Lit Earth’s Skies for Months
Scientists Identify 20 Alien Worlds Most Likely To Be Like Earth
4 Surprising Things That Might Actually Cause Alzheimer’s Disease
The F-16 Looks Positively Space-Aged in this Aerodynamics Test
How We'll Get to Mars by 2033
Feds Bust Huge 'Avalanche' Hacker Network in Global Sting Operation
There Are Strange Hot Spots On Giza's Great Pyramid, And No One's Quite Sure Why