Ancient supernovas may have blasted Earth with powerful radiation, causing dramatic changes in our climate, and could do so ...

Supernovas happen when giant stars, far larger than our sun, burn through their fuel and collapse under their gravity.

In a nutshell A massive supernova explosion 13,000 years ago may have triggered the Younger Dryas ice age by damaging Earth’s ...

"We have abrupt environmental changes in Earth's history ... "When nearby supernovas occur in the future, the radiation could have a pretty dramatic effect on human society.

The calculations suggested 2.5 supernovas might affect Earth in some way every 1 billion years, equating to one or two in the past 500 million years during which life evolved on the planet.

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The calculations suggested that 2.5 supernovas might affect Earth in some way every 1 billion years, equating to one or two in the past 500 million years during which life evolved on the planet.

The calculations suggested that 2.5 supernovas might affect Earth in some way every 1 billion years, equating to one or two in the past 500 million years during which life evolved on the planet. The ...