NASA SHOCK: An asteroid impact 2.2 billion years ago may have ended the 'Snowball Earth' ice age
Scientists now speculate the asteroid helped shape the planet’s climate shortly after oxygen first appeared in the atmosphere., Curtin University in Australia and Imperial College London in the UK, researchers have also found Yarrabubba is the oldest known impact crater on the planet.The crater’s formation places it right around the time the so-called “Snowball Earth” came to an end.
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