Columbia subject headings:
Cosmology--Congresses.
Galaxies--Observations--Congresses.
Infrared Astronomical Satellite--Congresses.
Infrared astronomy--Observations--Congresses.
Solar system--Congresses.
Harvard subject headings:
Astronomy
Astrophysics
Cosmology--Congresses.
Galaxies--Observations--Congresses.
Infrared Astronomical Satellite--Congresses.
Infrared astronomy--Observations--Congresses.
Physical geography.
Physics.
Solar system--Congresses.
Princeton subject headings:
Cosmology--Congresses.
Galaxies--Observations--Congresses.
Infrared Astronomical Satellite--Congresses.
Infrared astronomy--Observations--Congresses.
Solar system--Congresses.