A layer of charged particles, called the ionosphere, surrounds Earth, extending from about 50 to 360 miles above the surface…
Weighing 405 lbs. (184 kg), this 35-inch (89-cm) pressurized stainless steel sphere measured the density, composition, pressure and temperature of…
The Far Ultra Violet Imaging Spectrograph, or FUV, for the NASA ICON mission during a test of the door release…
A team of engineers at the Naval Research Laboratory in Washington, D.C., stands behind the instrument they built — the…
The front of the Far Ultra Violet Imaging Spectrograph, or FUV, for the NASA ICON mission.
Bright swaths of red in the upper atmosphere, known as airglow, can be seen in this image taken from the…
