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Cement Mixed on ISS Helps Pave the Way for Future Space Colonies
As cement hardens through a process called hydration, the molecules within the mixture develop millions of microscopic crystals, like those seen in this screenshot from the NASA video below. These...
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How Old Are Saturn’s Rings?
A recently captured view of Saturn’s rings shows them glowing brightly on June 20, 2019. Hubble took this stunning shot as part of the Outer Planets Atmospheres Legacy (OPAL) project. (Credit: NASA,...
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What’s Hotter Than the Surface of the Sun? The Solar Corona
There are two ways to see the sun’s corona: Send up a spacecraft or wait for a total solar eclipse. On the left, the sun’s wispy atmosphere glows with ultraviolet light, captured by the European Space...
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How Many People Have Died in Outer Space?
Following the only deaths to have ever occurred in space, the USSR started a policy requiring all cosmonauts to wear pressurized spacesuits during reentry. (Credit: Peakpx.com) For many wannabe...
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How the First Exoplanets Were Discovered
The first exoplanets ever discovered were found orbiting the pulsar PSR B1257+12. It took years for astronomers to find exoplanets around sun-like stars. (Credit:NASA/JPL-Caltech) In 1992, astronomers...
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China and Europe Want to Build More Powerful Supercolliders. Is it Worth it?
Particle collisions event simulation at 13,000 GeV in the CMS, a general-purpose detector at the Large Hadron Collider. (Credit: CERN) (Inside Science) — In 2012, particle physicists detected the...
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After 40 Years, These Voyager Instruments Are Still Talking to NASA
This artist’s concept shows Voyager 1 entering the interstellar medium. (Credit: NASA/JPL-Caltech) 1. High-Gain AntennaSHUTDOWN DATE: Still activePURPOSE: CommunicationsKEY FINDING: This is the...
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The Best of Voyager: The Longest-Running Space Mission in History
The Voyager proof test model in the space simulator chamber at NASA’s Jet Propulsion Laboratory on December 3, 1976. (Credit: NASA/JPL-Caltech) When NASA launched Voyager 1 and Voyager 2 in the summer...
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DC-X: The NASA Rocket That Inspired SpaceX and Blue Origin
The first flight of the second version of the Delta Clipper, the DC-XA, at White Sands Missile Range in New Mexico. (Credit: NASA) The rocket looked like it was out of a science fiction movie. A...
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What It Takes to be a Space Pilot
Virgin Galactic’s SpaceShipTwo. The craft is flown by human pilots to space. (Credit: Steve Mann/Shutterstock) Taking control of a 3,000-pound rocket motor launching into an inhospitable environment...
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