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Solar Storms

Over the weekend Earth was slammed by the biggest solar storm in about a decade. Days earlier a huge x-class solar flare (the most powerful category) had blasted millions of tons of hydrogen into space, with Earth in the cross-hairs. The eruption – called a coronal mass ejection – blasted through space at more than […]

Existential threats

Recent discussions in the media about various “existential threats” have got me to wondering exactly what this term means – and as what you might call a “recovering professor” I’m also wondering whether or not this term is being used correctly or consistently by all of those bandying it about. And for those of you […]