Everyone knows the Hubble telescope, but NASA has other space telescopes in orbit making incredible discoveries as well - one is The Spitzer.

The Spitzer Space Telescope was launched in August 2003 and studies the infrared band of space. On Earth this band is mostly obscured by the atmosphere, so a space-based telescope is the only way to get detailed data.

Even then the telescope must be cooled to nearly Absolute Zero (-273C) to ensure its own heat doesn't disrupt its readings.

The telescope is named after the American astrophysicist Lyman Spitzer Jr who was the first to propose putting a telescope in space, and was a driving force behind the Hubble project.

In this show we present some of the fascinating discoveries made by the Spitzer telescope.

Caption information (in order):

1) Composite image of star cluster Pismis 24 in the constellation Scorpius
2) Visible and infrared view of thousands of stars in the center of the Milky Way
3) Visible and infrared view of thousands of stars in the center of the Milky Way
4) The Cartwheel Galaxy in a combined infrared, ultraviolet, X-ray and visible spectrum image
5) Infrared image penetrates the murky cloud of the Carina Nebula to show star-forming regions
6) The 'stellar nursery' DR21, located inside a huge dust cloud about 10,000 light years away
7) Supernova remnant Cassiopeia A in infrared (red), visible (yellow) and X-ray (blue & green) bands
8) The star-forming 'bubble' RCW79 in the Centaurus constellation 17,200 light years away
9) The 'Cigar' galaxy M82 in visible, then infrared light, showing its halo of dust & hydrocarbons
10) The hot central star of NGC2440 surrounded by cool gas seen in the infrared band
11) The Sombrero Galaxy M104 seen in infrared and then visible light. At the center is a massive black hole
12) The Sombrero Galaxy M104 seen in infrared and then visible light. At the center is a massive black hole
13) Protostars, some just 100,000 years old, seen in the visible & infrared bands of the Snowflake Cluster
14) Protostars, some just 100,000 years old, seen in the visible & infrared bands of the Snowflake Cluster
15) The 'Mountains of Creation', a star-forming region 50 light years across in the constellation of Cassiopeia