article_snippet: This gives scientists a chance to study the sun's atmosphere and help solve a cosmic conundrum.
article_snippet: Astronomer Robert Massey of the UK's Royal Astronomical Society explained that the sun's atmosphere or corona is a massive 2 million degrees Celsius but the sun's surface only around 5,500 Celsius.
article_snippet: Astronomer Robert Massey of the UK's Royal Astronomical Society said this temperature difference has long mystified scientists.
article_snippet: Perhaps the brief window will give solar experts a chance to collect more data.
article_snippet: But don't worry, you still have to time to catch one -- NASA calculates this will take about 563 million years.