A background of distant stars, sinuous and spiky bands of Southern Lights (Aurora Australis) [
http://antwrp.gsfc.
], and the faint glow of charged plasma (ionized atomic gas [
http://www-spof.gsf
]) surrounding the Space Shuttle Discovery's engines [
http://antwrp.gsfc.
] give this photo from the STS-39 mission an eerie, otherworldly look. This image [
http://images.jsc.n
] reflects Discovery's April 1991 mission well - its payload bay (PLB) was filled with instruments designed [
http://images.jsc.n
] to study celestial objects, aurora and atmospheric phenomena, and the low Earth orbit environment around the PLB itself. The aurora [
http://www.geo.mtu.
] seen here are at a height of about 50-80 miles. Aurora are caused by charged particles in the solar wind [
http://www-spof.gsf
], channeled through the Earth's magnetic field [
http://www-spof.gsf
] which excite molecules in the upper atmosphere.
Explanation
A background of distant stars, sinuous and spiky bands of Southern Lights (Aurora Australis) [
http://antwrp.gsfc.
], and the faint glow of charged plasma (ionized atomic gas [
http://www-spof.gsf
]) surrounding the Space Shuttle Discovery's engines [
http://antwrp.gsfc.
] give this photo from the STS-39 mission an eerie, otherworldly look. This image [
http://images.jsc.n
] reflects Discovery's April 1991 mission well - its payload bay (PLB) was filled with instruments designed [
http://images.jsc.n
] to study celestial objects, aurora and atmospheric phenomena, and the low Earth orbit environment around the PLB itself. The aurora [
http://www.geo.mtu.
] seen here are at a height of about 50-80 miles. Aurora are caused by charged particles in the solar wind [
http://www-spof.gsf
], channeled through the Earth's magnetic field [
http://www-spof.gsf
] which excite molecules in the upper atmosphere.
Explanation