Beneath the bogs of New Zealand’s Northland is a massive Ngāwhā kauri, living from 41,000 to 42,500 years ago, which gives an isolated, unbroken record of a period when Earth’s magnetic field declined ...

That’s why it took scientists by surprise when dozens of lightning strikes were detected within 300 nautical miles of the North Pole this past weekend. In fact, it was so unusual that it was ...