Topic
020102 - Astronomical and Space Instrumentation
8
970102 - Expanding Knowledge in the Physical Sciences
5
020104 - Galactic Astronomy
4
Antarctica
3
160605 - Environmental Politics
2
XXXXXX - Unknown
2
surveys
2
0201 - Astronomical and Space Sciences
1
020103 - Cosmology and Extragalactic Astronomy
1
160507 - Environment Policy
1
160802 - Environmental Sociology
1
200204 - Cultural Theory
1
969999 - Environment not elsewhere classified
1
970116 - Expanding Knowledge through Studies of Human Society
1
Chile
1
attitudes
1
aurora
1
aurorae
1
cloud cover
1
galaxies
1
infrared telescopes
1
interferometers
1
optical observations
1
site testing instruments
1
sky
1
sky brightness
1
spectrum analysis
1
winter
1