NASA's Parker Solar Probe, which has flown closer to the Sun than any spacecraft ever, has beamed back the first observations from its close encounters with the Sun, revealing a 'spectacular trove' of data about the solar wind and space weather, reported the US space agency. The data from the probe, published in the journal Nature, offers clues to long-standing mysteries, including why the Sun's atmosphere, known as the corona, is hundreds of times hotter than its surface, as well as the precise origins of the solar wind.
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