constellation

NASA’s launching a satellite constellation this month to study the solar wind in 3D

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The sun, for all its glitz, tends to hide behind a veil of mystery. For instance, its outer atmosphere, the corona, appears to be hotter than its surface — like, way hotter — and scientists aren’t sure why. There’s also a big puzzle concerning how the solar wind, which is a stream of charged particles … Read more

Orion the Hunter, the most recognizable constellation

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Orion the Hunter is arguably the most recognizable constellation in the world. Orion lies on the celestial equator, making it visible from both the Northern and Southern Hemispheres. Orion’s shape is easy to pick out because of its many bright stars and signature Orion’s Belt: three stars close together in a nearly straight line. Orion … Read more