Red sprites, short-lived flashes caused by intense lightning, are rarely captured on camera.
Published Jul 10, 2012
Bolts light up Earth’s atmosphere 4 million times a day. Scientists hope to observe a few.
Published Mar 23, 2014
This composite image was made from more than 400 photos taken as the International Space Station traveled from Namibia toward the Red Sea.
Published Oct 20, 2019
The map shows average yearly counts of lightning flashes per square kilometer, based on data collected by NASA satellites between 1995 and 2002.
Published Jun 23, 2006
If Iris, the goddess of the rainbow, had a sister she would be the goddess of Aurora. Glowing green ripples form arcs that constantly transform their shape into new glowing diaphanous forms. There is nothing static about auroras. They are always moving, always changing, and like snowflakes, each display is different from the last.
Published Jan 5, 2004
he red tile roofs and historic buildings of Cuba’s Old Havana appear distinctly in this high-resolution photograph taken by astronauts on board the International Space Station.
Published Jan 5, 2003
Red colors of the aurora are dominant in this image captured by a digital still camera in September 2001. Auroras are caused when high-energy electrons pour down from the Earth’s magnetosphere and collide with atoms. Red aurora occurs from 200 km to as high as 500 km altitude and is caused by the emission of 6300 Angstrom wavelength light from oxygen atoms.
Published Dec 2, 2001
Space-borne sensors extend the record of global lightning detection.
Published Mar 31, 2015
