http://www.spitzer.caltech.edu/resource_list/2-Featured-Images http://www.spitzer.caltech.edu/images/spitzer_icon.png?1274224175 Dense envelopes of gas and dust surround the fledging stars known as protostars, making their detection difficult until now. The discovery gives scientists a window into the earliest and least understood phases of star formation. Observation http://www.spitzer.caltech.edu/images/5564-sig13-001-Infant-Stars-Peek-Out-from-Dusty-Cradles sig13-001 Tue, 19 Mar 2013 00:00:00 +0000 This composite image shows the spiral galaxy NGC 3627, located about 30 million light years from Earth. Observation http://www.spitzer.caltech.edu/images/5512-sig12-013-Revealing-Hidden-Black-Holes sig12-013 Fri, 14 Dec 2012 00:00:00 +0000 The Cygnus OB2 star cluster is about 5,000 light years from Earth and contains many massive young stars. Observation http://www.spitzer.caltech.edu/images/5503-sig12-012-Probing-a-Nearby-Stellar-Cradle sig12-012 Thu, 08 Nov 2012 00:00:00 +0000 A dying star is throwing a cosmic tantrum in this combined image from NASA's Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX). Observation http://www.spitzer.caltech.edu/images/5259-sig12-011-The-Helix-Nebula-Unraveling-at-the-Seams sig12-011 Wed, 03 Oct 2012 00:00:00 +0000 This composite image shows a superbubble in the Large Magellanic Cloud. Observation http://www.spitzer.caltech.edu/images/5218-sig12-009-A-Surprisingly-Bright-Superbubble sig12-009 Fri, 31 Aug 2012 00:00:00 +0000 The galaxy Messier 100, or M100, shows its swirling spiral in this infrared image from NASAs Spitzer Space Telescope. The arcing spiral arms of dust and gas that harbor starforming regions glow vividly when seen in the infrared. Observation http://www.spitzer.caltech.edu/images/5212-sig12-008-Hot-and-Cold-in-the-M100-Galaxy- sig12-008 Thu, 02 Aug 2012 00:00:00 +0000 The galaxy Messier 100, or M100, shows its swirling spiral in this infrared image from NASAs Spitzer Space Telescope. The arcing spiral arms of dust and gas that harbor starforming regions glow vividly when seen in the infrared. Observation http://www.spitzer.caltech.edu/images/5208-sig12-007-The-Swirling-Arms-of-the-M100-Galaxy sig12-007 Thu, 02 Aug 2012 00:00:00 +0000 How is it that two glowing globs of gas that look completely different can actually be basically the same thing? In the case of planetary nebulae like IC 4406 and NGC 2392, all it may take is a simple shift of perspective, provided here in infrared images taken by NASAs Spitzer Space Telescope. Observation http://www.spitzer.caltech.edu/images/5186-sig12-006-A-Planetary-Nebula-Pair sig12-006 Mon, 02 Jul 2012 00:00:00 +0000 This image of the Pinwheel Galaxy, or M101, combines data in the infrared, visible, ultraviolet and x-rays from four of NASAs space telescopes. This multi-spectral view shows that both young and old stars are evenly distributed along M101s tightly-wound spiral arms. Such composite images allow astronomers to see how features in one part of the spectrum match up with those seen in other parts. Observation http://www.spitzer.caltech.edu/images/5163-sig12-005-A-Pinwheel-Galaxy-Rainbow sig12-005 Wed, 23 May 2012 00:00:00 +0000 A massive star-forming region located about 160,000 light years away. Observation http://www.spitzer.caltech.edu/images/5130-sig12-004-A-New-View-of-the-Tarantula-Nebula sig12-004 Tue, 17 Apr 2012 00:00:00 +0000 Vital clues about the devastating ends to the lives of massive stars can be found by studying the aftermath of their explosions. Observation http://www.spitzer.caltech.edu/images/4918-sig12-001-Remnant-of-an-Explosion-With-a-Powerful-Kick- sig12-001 Wed, 01 Feb 2012 00:00:00 +0000