SA-Space

SA-Space

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SA Forum is an invited essay from experts on topical issues in science and technology. This week NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko...

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Every once in a great while, something almost unspeakable happens to Earth. Some terrible force reaches out and tears the tree of life limb...

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In his 1941 short story “Nightfall,” Isaac Asimov describes a planet called Lagash that resides in a multi-star system. Constantly illuminated from all sides...

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Today marks 50 years since Alexei Leonov of the former Soviet Union floated beyond the bounds of his Voskhod 2 space capsule in the...

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Physicists are getting antsy. Their most highly prized tool for studying the smallest bits of nature—the Large Hadron Collider (LHC) particle accelerator—has been shut...

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In late March astronaut Scott Kelly and cosmonaut Mikhail Kornienko will take off in a Soyuz rocket from the steppes of Kazakhstan, heading to...

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Astrobiologists and planetary scientists have a fairly good idea of which chemicals might indicate the presence of oxygen-breathing, water-based life—that is if it is...

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I was saddened to hear Leonard Nimoy died. It was even more sorrowful to find that years of smoking had caught up with him....

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The planet Mars has been associated with its namesake god of war for millennia, but its own past may have been more violent than...

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The broad-shouldered summit of Mauna Kea holds many meanings for many people: For astronomers, it’s a high-altitude playground of stars, among the best places...