
NASA explains why June 30 will get extra second
The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be added. "Earth's rotation is gradually slowing down a bit, so leap sec ... more
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Hubble sees a 'behemoth' bleeding atmosphere around a warm exoplanet
Astronomers using NASA's Hubble Space Telescope have discovered an immense cloud of hydrogen dubbed "The Behemoth" bleeding from a planet orbiting a nearby star. The enormous, comet-like feature is ... more
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Spiral arms cradle baby terrestrial planets
New work from Carnegie's Alan Boss offers a potential solution to a longstanding problem in the prevailing theory of how rocky planets formed in our own Solar System, as well as in others. The snag ... more
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Engineers develop micro-tentacles so tiny robots can handle delicate objects
The tiny tube circled an ant's thorax, gently trapping the insect and demonstrating the utility of a microrobotic tentacle developed by Iowa State University engineers. "Most robots use two fingers ... more
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Telescopes focus on target of ESA's asteroid mission
Telescopes around the globe recently homed in on one point in the sky, observing the paired Didymos asteroids - the target for ESA's proposed Asteroid Impact Mission. The 800 m-diameter main body is ... more
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