Posts by: David Appell

The American eclipse: wonder, science and festivities


by David Appell in Salem, Oregon, US

The Moon partially blocks the Earth’s view of the Sun at least twice, but the 21 August total solar eclipse – the “Great American Eclipse” –  is “likely to be the single most viewed natural phenomenon in history of America”, according to Randall Milstein, an astronomy instructor at Oregon State University. He says a total of 324 million people live within a 9-hour drive of the path of totality.

While the total solar eclipse will span the US – the first to do so since 1891 – the UK will only see a slight partial eclipse, where a sliver of the Moon covers the Sun. Starting over Belfast at 7:37 p.m. BST and leaving Plymouth at 8:33 p.m. BST, this partial eclipse will extend to eastern continental Europe. But it will only be a 4% blockage at best – so be sure to use eclipse safety glasses!


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America counts down to the big eclipse

Section of NASA's 2017 Earth Day poster depicting the solar eclipse

Night in day: the Sun will be temporarily blocked from view. (Courtesy: NASA)

By David Appell in Salem, Oregon, US

On Monday 21 August tens of millions of people will view one of the most remarkable phenomena available on Earth – a total solar eclipse. The shadow created as the Moon blocks out the Sun will sweep across the US in the middle of the day and I’ve been looking forward to it since I learned of it six years ago.

I’m one of the lucky ones – I live in Salem, Oregon, which lies within the eclipse’s 10 km-wide path of totality. Along this path, day will turn dark for about two minutes and the flare of the Sun’s corona will become visible. Birds will roost, crickets will begin to chirp, the temperature will fall about 5 °C, and people will likely gape in awe as humans have no doubt done since our species first began.


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