The correct answer is Space.
Infrared light gives important clues and information about temperature and other characteristics of the celestial bodies. Since the Earth's atmosphere absorbs infrared radiation from the stars, it is difficult to observe the stars' light in long wavelength, like infrared spectrum, using telescopes located on the surface of the Earth. For that reason, astronomers from different space agencies have located large telescopes in the space orbiting the Earth in order to capture infrared light from the stars. Examples of these telescopes are the Infrared Astronomical Satellite (IRAS), the Wide-field Infrared Survey Explorer (WISE) and the Hubble telescope, which can observe near infrared spectra.
