David Aguilar
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Christine Pulliam
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CfA Press Release Images
 Release No. 04-19: Spitzer Reveals What Edwin Hubble Missed
For Release: EMBARGOED until 9:30 a.m. MDT, Monday, May 31, 2004

NGC5746The nearly edge-on galaxy NGC 5746 is partially obscured invisible-lightphotographs, making accurate classification impossible. This image fromtheSpitzer Space Telescope reveals the galaxy's true nature, showing adramaticring of warm dust surrounding the galaxy's bright nucleus.

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NGC1961The starburst galaxy NGC 1961 has one bright spiral arm wrapped tightlyaround the nucleus. This Spitzer Space Telescope image uncovered manyfainter arms, giving the galaxy the appearance of a nautilus shell. Redknots of warm dust mark the birthplaces of new stars, which are forming atarate more than 10 times higher than in the Milky Way.

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mosaic of Spitzer imagesInfrared observations by the Spitzer Space Telescope may lead to a newwayof classifying galaxies. Spitzer's keen vision can detect hiddenstructuressuch as dusty spiral arms or rings.Credit:M.A. Pahre, M.L.N. Ashby, G.G. Fazio, and S.P. Willner (SAO)

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