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Best Sources of Astronomical Images on the Web

by Andrew Fraknoi (Foothill College)

Version 4 (Jan. 2016)

© 2016 by Andrew Fraknoi. All rights reserved. Permission to reproduce for any nonprofit, educational purpose is hereby granted. For other purposes, contact author: fraknoi@ fhda.edu

1. The Top Image Sites

Astronomy Picture of the Day: http://antwrp.gsfc.nasa.gov/apod/lib/aptree.html
Two space scientists scour the Internet and feature one “sexy” astronomy image each day.

Hubble Space Telescope Images: http://hubblesite.org/newscenter/archive/browse/images/
Starting at this page, you can select among many hundreds of Hubble pictures by subject. Other ways to approach these images are through the more public-oriented Hubble Gallery: http://hubblesite.org/gallery/ & the European ESO site: http://www.spacetelescope.org/images/

National Optical Astronomy Observatories Image Gallery: http://www.noao.edu/image_gallery/
Growing archive of images from the many telescopes that are at the National Observatories.

Planetary Photojournal: http://photojournal.jpl.nasa.gov/index.html
Features thousands of images from NASA’s planetary exploration, with a good search menu.

European Southern Observatory Photo Gallery: http://www.eso.org/public/images/
Magnificent color images from ESO’s largest telescopes. See the topical menu at top.

The World at Night: http://www.twanight.org/newTWAN/index.asp
Dramatic night-sky images by professional photographers who are amateur astronomers.

2. Other Useful General Galleries

Anglo-Australian Observatory: http://203.15.109.22/images/ ; soon at: https://www.aao.gov.au/public/images
Great copyrighted color images by David Malin et al.

Canada-France-Hawaii Telescope: http://www.cfht.hawaii.edu/HawaiianStarlight/images.html
Remarkable color images from a major telescope on top of the Mauna Kea peak in Hawaii.

European Space Agency Gallery: http://www.esa.int/spaceinimages/Images
Access images from such missions as Mars Express, Rosetta, and Herschel.

Gemini Observatory Images: http://www.gemini.edu/index.php?option=com_gallery
Images from a pair of large telescopes, in the northern and the southern hemispheres.

Isaac Newton Group of Telescopes Image Gallery: http://www.ing.iac.es/PR/images_index.html
Beautiful images from the Herschel, Newton, and Kapteyn telescopes on La Palma.

National Radio Astronomy Observatory Image Gallery: http://images.nrao.edu/
Organized by topic, the images show objects and processes that give off radio waves.

3. Some Galleries on Specific Subjects

Astronaut Photography of the Earth: http://eol.jsc.nasa.gov/

Chandra X-ray Observatory Images: http://chandra.harvard.edu/photo/category.html

NASA Human Spaceflight Gallery (astronauts): https://www.flickr.com/photos/nasa2explore or http://spaceflight1.nasa.gov/gallery/index.html

Robert Gendler (amateur closest to being professional): http://www.robgendlerastropics.com/

Sloan Digital Sky Survey Images: http://www.sdss.org/gallery/

Solar Dynamics Observatory Gallery (Sun images): http://sdo.gsfc.nasa.gov/gallery/main

Spitzer Infrared Telescope Images: http://www.spitzer.caltech.edu/images