Universe  ID: 10232

HST SM4 COS Installation EVA

Cosmic Origins Spectrograph (COS) will be the most sensitive ultraviolet spectrograph ever flown on Hubble. COS will probe the "cosmic web" - the large-scale structure of the universe whose form is determined by the gravity of dark matter and is traced by galaxies and intergalactic gas. COS will explore how the "cosmic web" evolved from ancient times. COS will also sample the chemical content and physical state of gas in distant galaxy halos, providing important insight into the building process of early galaxies and the production of elements heavier than hydrogen and helium over cosmic time. Required to accomplish these goals is the extraordinary sensitivity of COS's far-ultraviolet channel—a factor more than 30 times greater than that of previous spectroscopic instruments for the detection of extremely low light levels. A two-fold enhancement will be offered by COS's near-ultraviolet channel. To install the COS instrument into the Hubble Space Telescope, he Servicing Mission 4 astronauts will remove the Corrective Optics Space Telescope Axial Replacement (COSTAR) instrument (installed during Servicing Mission 1 in 1993, to correct for Hubble's spherical aberration) and then install COS in its place.
 

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Credits

Bob Sauls (Frassanito and Associates): Lead Animator
Michael McClare (HTSI): Producer
Please give credit for this item to:
NASA Goddard Space Flight Center

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http://svs.gsfc.nasa.gov/10232

Data Used:
HST/WFPC2
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of these series:
HST
SM4
COS
HST SM4 Animations
Astrophysics Animations

Keywords:
SVS >> HDTV
SVS >> Spacecraft
SVS >> Hubble Space Telescope
SVS >> HST
SVS >> Astrophysics
SVS >> SM4
SVS >> Servicing Mission 4
SVS >> EVA
SVS >> COS
SVS >> COSTAR
SVS >> Axial Replacement
NASA Science >> Universe