First Flight Instrument Delivered for James Webb Space Telescope

MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. PHONE 818-354-5011
http://www.jpl.nasa.gov

Priscilla Vega 818-354-1357
Jet Propulsion Laboratory, Pasadena, Calif.
priscilla.r.vega@jpl.nasa.gov

Rob Gutro 301-286-4044
NASA Goddard Space Flight Center, Greenbelt, Md.
robert.j.gutro@nasa.gov

News release: 2012-174 June 14, 2012

First Flight Instrument Delivered for James Webb Space Telescope

The full version of this story with accompanying images is at:
http://www.jpl.nasa.gov/news/news.cfm?release=2012-174&cid=release_2012-174

GREENBELT, Md. -- The first of four instruments to fly aboard NASA's James Webb Space
Telescope (Webb) has been delivered to NASA. The Mid-Infrared Instrument (MIRI) will allow
scientists to study cold and distant objects in greater detail than ever before.

MIRI arrived at NASA's Goddard Space Flight Center in Greenbelt, Md. on May 29. It has been
undergoing inspection before being integrated into Webb's science instrument payload known as the
Integrated Science Instrument Module (ISIM).

Assembled at and shipped from the Science and Technology Facilities Council's Rutherford
Appleton Laboratory in the United Kingdom, MIRI was developed by a consortium of 10 European
institutions and NASA's Jet Propulsion Laboratory in Pasadena, Calif., and delivered by the
European Space Agency.

George Rieke, MIRI science team lead at the University of Arizona, Tucson, noted, "MIRI is the
first Webb instrument to be delivered, the result of teamwork in the U.S. and internationally."

MIRI will observe light with wavelengths in the mid-infrared range of 5 microns to 28 microns,
which is a longer wavelength than human eyes can detect. It is the only instrument of the four with
this particular ability to observe the physical processes occurring in the cosmos.

"MIRI will enable Webb to distinguish the oldest galaxies from more evolved objects that have
undergone several cycles of star birth and death," said Matt Greenhouse, ISIM project scientist at
Goddard. "MIRI also will provide a unique window into the birth places of stars which are typically
enshrouded by dust that shorter wavelength light cannot penetrate."

MIRI's sensitive detectors will allow it to observe light, cool stars in very distant galaxies; unveil
newly forming stars within our Milky Way; find signatures of the formation of planets around stars
other than our own; and take imagery and spectroscopy of planets, comets and the outermost bits of
debris in our solar system. MIRI's images will enable scientists to study an object's shape and
structure.

"MIRI will help us understand what's out there at the edge of what we can see," said Mike Ressler,
the instrument's project scientist at JPL. "The shorter-wavelength instruments will discover the glow
of the farthest known objects, but we need MIRI to help identify what they are -- supermassive black
holes, newborn galaxies or something we've never seen before."

The most powerful space telescope ever built, Webb is the successor to NASA's Hubble Space
Telescope. Webb's four instruments will reveal how the universe evolved from the Big Bang to the
formation of our solar system. Webb is a joint project of NASA, the European Space Agency and the
Canadian Space Agency.

To view two "Behind the Webb" videos about MIRI, visit:
http://go.nasa.gov/LQUFC9 and http://go.nasa.gov/LQUPta

For more information about the mid- and near-infrared spectrum, visit:
http://www.jwst.nasa.gov/faq.html#ir

For more information about NASA's James Webb Space Telescope, visit: www.jwst.nasa.gov

-end-


To remove yourself from this mailing, please go to http://www.kintera.org/TR.asp?a=7gLOI3PFLlIMIYMPF&s=iiJYJ1MFLeKKL0MLJsF&m=8nKDKPPtGbLDLWK

To remove yourself from all mailings from NASA Jet Propulsion Laboratory, please go to http://www.kintera.org/TR.asp?a=dmK0KlN3IrIZK8N4G&s=iiJYJ1MFLeKKL0MLJsF&m=8nKDKPPtGbLDLWK