[DOC] [TLE] Chapter 5, Section 6 [PAR] Generally, infrared telescopes resemble optical telescopes, but their detectors ... 
radiation can penetrate smog much better than short-wavelength visible light. ... 
facility in this part of the spectrum was the Infrared Astronomy Satellite (IRAS), ... 
will encounter many findings made by this satellite about comets, stars, galaxies,
... [DOC] [TLE] History of Infrared Astronomy - Cool Cosmos [PAR] After Sir William Herschel's discovery of infrared ,which showed that the Sun 
emits ... more sophisticated infrared studies of the Moon would show that its 
surface was ... to interact with the photographic plates which are used in visible 
light astronomy. ... Infrared detectors attached to ground based telescopes can 
detect the... [DOC] [TLE] Near, Mid and Far-Infrared - Infrared Processing and Analysis Center [PAR] Near-infrared observations have been made from ground based ... As we move 
from the near-infrared into mid and far-infrared regions of the spectrum, ... (0.7-1) 
to 5 ... light to even be detected by optical telescopes, and have been discovered 
for ... Objects in this temperature range emit most of their light in the mid-infrared. [DOC] [TLE] Spitzer Space Telescope - Wikipedia [PAR] The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope 
Facility (SIRTF), ... In keeping with NASA tradition, the telescope was renamed 
after its ... on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 
UTC-5 (EDT). ... Earlier infrared observations had been made by both space-
based and... [DOC] [TLE] Astronomical spectroscopy - Wikipedia [PAR] Astronomical spectroscopy is the study of astronomy using the techniques of 
spectroscopy to ... Soon after he combined telescope and prism to observe the 
spectrum of .... Since his discovery, astronomers have determined that a large 
portion of ... Emission nebulae emit light at specific wavelengths depending on 
their... [DOC] [TLE] News | IRAS Discovers New Phenomena's - JPL - NASA [PAR] Nov 9, 1983 ... The orbiting telescope has detected more than 200,000 infrared sources, ... about 
their distances; additional IRAS and other observations are required to ... No 
spiral galaxies have been detected in visible light at the ... IRAS has also 
discovered three narrow, continuous rings of dust within the solar system. [DOC] [TLE] NASA Instrument on Rosetta Makes Comet Atmosphere Discovery ... [PAR] NASA's Alice instrument on Rosetta finds that electrons near its target comet 
cause ... can identify the chemical composition of gases by examining their light 
spectrum. .... The image scale is about two-tenths of an inch (5 millimeters) per 
pixel. ..... Observations made by the Hubble Space Telescope of comet 252P/
LINEAR,... [DOC] [TLE] How to Catch a Glimpse of a New Year's Comet | NASA [PAR] Dec 31, 2015 ... Shortly after its discovery, precise orbit determination showed that Comet .... 
Based on the latest data, a small asteroid estimated at 5 feet (1-2 .... Observations 
made by the Hubble Space Telescope of comet ...... Scientists can identify the 
chemical composition of gases by examining their light spectrum. [DOC] [TLE] Comet Hunter's First Images on the Ground | NASA [PAR] Feb 14, 2011 ... NASA's Stardust-NExT mission took this image of comet Tempel 1 at 8:39 p.m. .... 
as in 1993 when comet Shoemaker-Levy 9 was discovered and its pieces linked 
to a ... Observations made by the Hubble Space Telescope of comet ... and 
moving the date of the asteroid's Earth flyby from March 5 to March 8. [DOC] [TLE] PDF - 4.2 MB - ESA Science & Technology [PAR] Infrared light was discovered exactly 200 years ago by the Anglo-German ... 
observing in May 1998 its observations have never been used more actively than 
... participation in the NASA/ESA Hubble Space Telescope gave Europe .... '
coloured' lines is called a spectrum. ..... Comets are made of 'pure' protosolar 
material. [DOC] [TLE] Spitzer Spies a Comet Coma and Tail | NASA [PAR] 20, the Kepler spacecraft, operating in its K2 mission, fixed its gaze on comet 67P
. ... The animation shows a period of 29.5 hours of

Question: The IRAS telescope, which discovered 5 comets, made its observations in this spectrum of light
Answer: infrared