March opens with a spectacular total lunar eclipse. Our guide will help you make the most of it.
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Space News & Blog Articles
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One of the largest known stars — a red supergiant — suddenly shrank and heated up, transforming into a different kind of star.
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The solar cycle has ramped up, and it's a great time to photograph this captivating target.
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A purely pragmatic look at the cost of doing it yourself.
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Grinding your own mirror can be great fun - and result in an excellent telescope.
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Your pretty pictures can contain valuable information.
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Deep-sky astrophotography is rapidly evolving, and in some ways, the future is already here.
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Taking special care of the stars in your astrophoto will make the entire image shine.
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The best optic for resolving fine planetary detail has changed over time.
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Here's a lightweight reflector that fits in your carry-on luggage.
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Panoramic mosaics can show far more than a single image ever can.
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The unexpected arrangement of exoplanets around a star more than 100 light-years from Earth might change how we think about planet formation.
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Three of the five naked-eye planets emerge in the fading afterglow of sunset. The first-quarter Moon Tuesday passes as close to straight up as you may ever see it. And can you try for Sirius B?
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Space debris are contaminating our atmosphere at very high altitudes – and we don't yet understand the effects.
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The RAMSES mission to the asteroid Apophis will launch in 2028 to meet the asteroid before its close encounter with Earth.
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Traversing the galaxy from places yet known, a few interstellar objects have taken a quick dip into our solar system. Astronomers look to nearby planet-forming stellar systems as possible launching posts.
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Master the basics of the most popular astronomical image-processing software.
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Here's how you can contribute to the science of astronomy.
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After a recent explosive outburst, Comet 29P/Schwassmann-Wachmann is bright enough to see in a medium-sized telescope.
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On February 18th, the willowy crescent has a close shave with Mercury, so close that it occults the planet from some U.S. cities.
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Three planets await in the western twilight, though low Venus is a toughie. The crescent Moon passes them and, for the lucky, occults Mercury. After dark, Dog and Hare accompany Orion. And try for Kemble's Cascade.
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