Humans just 'touched' the sun for the first time using a spacecraft

The sun is the literal star of the show in our solar system, but we're still trying to figure out our celestial disco ball. Debates about the sun were first posed by ancient Greek philosophers. Thousands of years later, the combined work of people like Copernicus, Galileo, Kepler and Newton helped determine that planets orbit the sun. Many questions about our sun remain, like the nature of the energized wind that streams away from it across the solar system, or why the fiery orb's outer atmosphere is so much hotter than the surface.
It's why NASA sent the Parker Solar Probe on a seven-year mission to investigate in 2018. The spacecraft has already uncovered surprising things. Now, at its closest approach to the sun yet, we're getting to the good stuff. Solar update It's official: Humans have used a spacecraft to "touch the sun" and revealed some unusual insights about our star.
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