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... "portals" -- an extraordinary opening in space or time that connects travelers to distant realms. "We call them X-points or electron diffusion regions," explains plasma physicist Jack Scudder of the University of Iowa. "They're places where the magnetic field of Earth connects to the magnetic field of the Sun, creating an uninterrupted path leading from our own planet to the sun's atmosphere 93 million miles away."

... "portals" -- an extraordinary opening in space or time that connects travelers to distant realms. "We call them X-points or electron diffusion regions," explains plasma physicist Jack Scudder of the University of Iowa. "They're places where the magnetic field of Earth connects to the magnetic field of the Sun, creating an uninterrupted path leading from our own planet to the sun's atmosphere 93 million miles away."

Comet Lovejoy is visible near Earth’s horizon in this nighttime image photographed by NASA astronaut Dan Burbank, Expedition 30 commander, onboard the International Space Station on Dec. 22, 2011. :)

Comet Lovejoy is visible near Earth’s horizon in this nighttime image photographed by NASA astronaut Dan Burbank, Expedition 30 commander, onboard the International Space Station on Dec. 22, 2011. :)

Angela Palmer artist statement and downloadable catalogue of works

Angela Palmer artist statement and downloadable catalogue of works

<p>A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, Hank Green discusses 50 common science misconceptions about topics such as bats, dog years, and dinosaurs.</p>

<p>A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, Hank Green discusses 50 common science misconceptions about topics such as bats, dog years, and dinosaurs.</p>

Welcome to the Cassiopeia Project is an effort to make high definition science education videos available to anyone who wants them.

Welcome to the Cassiopeia Project is an effort to make high definition science education videos available to anyone who wants them.

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