1916: First day of the Battle of the Somme: the British Army suffers its worst day, losing 19,240 men. 1920: French tennis superstar Suzanne Lenglen beats Dorothea Chambers 6-3, 6-0 to win the ...

Lightning happens all the time, but certain parts of the world get far less of it than others, including near the North Pole. Lightning requires atmospheric instability, something that’s set up ...

Auroras may be visible from Alaska to Washington as a giant hole in the sun's atmosphere fuels geomagnetic storms with a high ...

A photography expert told National Geographic it’s best to use a wide-angle lens, an aperture or F-stop of four or lower and a tripod to stabilize the image. With a smartphone, NOAA recommends ...

Geologic records reveal that magnetic field strength and oxygen levels rise and fall together, implying deep-Earth processes ...

The south pole of the Sun, photographed by the Extreme Ultraviolet Imager instrument aboard Solar Orbiter on 30 March 2022. © ESA & NASA/Solar Orbiter/EUI Team The Sun’s poles are of particular ...