In the atmospheric layer above it, about 10 to 30 miles up, is the stratospheric polar vortex, where every winter a sunlight-starved Arctic spins up a mass of cold air that, ultimately, dissipates ...

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 ...

The Solar Orbiter space mission, a joint initiative of the European Space Agency (ESA) and NASA, has for the first time ...