From NASA 3D

3D Models/Eta Carinae Homunculus Nebula/README.txt

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+Included in this zip file are .stl-formatted and .obj-formatted 3D-printable models of the Eta Carinae Homunculus nebula. This 3D model was derived by Steffen, W., Teodoro, M., Madura, T., et al. 2014 and published in Monthly Notices of the Royal Astronomical Society. You can access the journal article directly at http://mnras.oxfordjournals.org/lookup/doi/10.1093/mnras/stu1088
+
+An original version of this zip file and accompanying information about the 3D model are available at http://svs.gsfc.nasa.gov/goto?11568
+
+You are free to use these model files as you wish, and you are highly encouraged to 3D-print your own Homunculus. 
+
+We understand that 3D printing often involves trial and error, so you are welcome to make adjustments, share the model, etc. We only request that proper credit and/or citation to Steffen, W., Teodoro, M., Madura, T., et al. (2014), and a link to the original model (above) be provided when appropriate. 
+
+NASA's general usage guidelines can be found at http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html
+
+The authors of the Monthly Notices paper also wish to thank the following for their help and enthusiasm during the 3D printing process; the project would not have been such a success without them. 
+
+Frédéric Vogt (Australian National University)
+
+Francis Reddy (Syneren Technologies)
+
+Sandy Shuman (SGT INC)

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Base.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.878431 0.878431 0.847059
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Body_Coupler.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.878431 0.878431 0.847059
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Cover_Hatch.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.784314 0.752941 0.721569
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+
+newmtl material_1
+Ka 0.200000 0.200000 0.200000
+Kd 0.094118 0.847059 0.972549
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Main_Body.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.878431 0.878431 0.847059
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Radio_Dishes.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.784314 0.752941 0.721569
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/Solar_Panels.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.784314 0.752941 0.721569
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hubble Space Telescope/HST/individual_pieces/OBJs/hubble_model_kit.obj.mtl

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+#
+# Wavefront material file
+# Converted by Meshlab Group
+#
+
+newmtl material_0
+Ka 0.200000 0.200000 0.200000
+Kd 0.878431 0.878431 0.847059
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+
+newmtl material_1
+Ka 0.200000 0.200000 0.200000
+Kd 0.784314 0.752941 0.721569
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+
+newmtl material_2
+Ka 0.200000 0.200000 0.200000
+Kd 0.094118 0.847059 0.972549
+Ks 1.000000 1.000000 1.000000
+Tr 1.000000
+illum 2
+Ns 0.000000
+

3D Models/Hurricane Julio/README.TXT

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+3D model of Hurricane Julio
+
+This model depicts Hurricane Julio on Aug. 7, 2014, as it churned in the Eastern Pacific with maximum sustained winds near 105 mph (165 km/h). At the time of the satellite images used to make this model, 2100 UTC, Julio was a Category 2 storm centered near latitude 17.1 degrees north and longitude 137.7 degrees west. 
+
+The model is based on visible and infrared images taken by the GOES 15 satellite. These were merged for aesthetic effect and cropped to a square around the storm. Elevations were assigned based on the brightness of sampled pixels to generate vertical height, which is exaggerated here by about 10 times assuming a typical height of 50,000 feet (15 km). Printed at its default size, the Julio model is 13.5 cm (5.3 inches) on each side, which represents an actual distance of 1,267 km (787 miles).
+
+This model is in the public domain. The GOES 15 images used to develop it were retrieved through the NASA/NOAA GOES Project at NASA’s Goddard Space Flight Center (http://goes.gsfc.nasa.gov).
+
+-- Francis Reddy
+   Aug. 21, 2014
+
+
+Files:
+
+Readme.txt			What you’re reading
+Hurricane_Julio.stl		3D-printable STL file (credit: Francis Reddy)
+Hurricane_Julio_IR2+Vis.tif	GOES 15 image composite (credit: NASA/NOAA GOES Project)