Our Universe: It's the 'Simplest' Thing We Know
Computer simulation of the formation of large-scale structures in the universe
October 8th, 2015
Our universe is actually really simple, it's just our cosmological theories that are getting needlessly complex, argues one of the world's leading theoretical physicists.
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Mars H2O: How Scientists Discovered Salty Water on the Red Planet
water on Mars
September 30th, 2015
How, exactly, were scientists able to prove that briny water can be found on Mars?
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In Photos: Is Water Flowing on Mars?
Salty water streaks on Mars
September 28th, 2015
Scientists say they've found evidence of flowing water on Mars. Salty brines found in dark streaks that show up and disappear throughout the Martian year are evidence that briny water is flowing on the Red Planet, scientists say.
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'The Martian' and Reality: How NASA Will Get Astronauts to Mars
Orion Space Capsule in Orbit Around Mars
October 3rd, 2015
NASA has been helping promote the new film "The Martian," which hits theaters across the United States today (Oct. 1), as a way to publicize its own plans to send astronauts to the Red Planet in the 2030s.
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Lush Oasis to Arid Desert: How Our View of Mars Has Changed
Viking Photo of Mars
September 30th, 2015
The dusty-red sphere now called Mars has fascinated stargazers since the dawn of humanity, but Earthlings' view of the planet has changed drastically over the years.
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'Supermoon' Total Lunar Eclipse Thrills Skywatchers Around the World
NASA photographer Aubrey Gemignani captured this amazing view of the perigee moon total lunar eclipse over Washington, D.C. on Sept. 27, 2015.
September 28th, 2015
On Sunday evening, a moon that appeared abnormally large and bright in Earth's skies dove into the planet's shadow, turning a gorgeous reddish-gold in the process. It was the first supermoon total lunar eclipse since 1982, and the last until 2033.
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Rare 'Supermoon' Lunar Eclipse Coming Sunday: Skywatching Tips
Supermoon Lunar Eclipse
September 25th, 2015
A rare supermoon lunar eclipse will grace the night sky on Sunday (Sept. 27), and if you live in the Western Hemisphere, you could have spectacular views of this celestial treat.
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New Maps of Ceres Highlight Mysterious Bright Spots, Giant Mountain
Occator Topography
October 2nd, 2015
The new maps from NASA's Dawn mission highlight the compositional and topographic differences across Ceres, the largest object in the main asteroid belt between Mars and Jupiter.
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Salty Water Flows on Mars Today, Boosting Odds for Life
Mysterious Dark Streaks on Mars
September 28th, 2015
The enigmatic dark streaks called recurring slope lineae (RSL) that appear seasonally on steep, relatively warm Martian slopes are probably caused by salty liquid water, researchers said.
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Why Does the Moon Turn Red During a Total Lunar Eclipse?
September 27th, 2015
Tonight, an oversized ruby-colored sphere will rise in the sky as a total lunar eclipse turns the normally pallid moon scarlet.
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