heliophysics
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The Parker Solar Probe Just Dipped Into the Sun’s Corona
The Sun, as you may know, is a giant blazing ball of nuclear fusion. It’s not the sort of thing you’d want to poke. But NASA scientists did just that, using the Parker Solar Probe to touch the Sun’s corona, making direct contact with the star’s plasma and atmosphere.
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Voyager 2 Detects Hints That Interstellar Space Is Nearby
Six years ago, the Voyager 1 spacecraft informed scientists that it had become the first man-made object to enter interstellar space. Now, Voyager 2 has begun to return signs that its own exit from the Solar System could be coming soon.