Viking program (English Wikipedia)

Navarro–Gonzáles, Rafael; Edgar Vargas; José de la Rosa; Alejandro C. Raga; Christopher P. McKay (December 15, 2010). "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars". Journal of Geophysical Research: Planets. Vol. 115, no. E12010. Archived from the original on January 9, 2011. Retrieved January 7, 2011.

archive.org (Global: 6^th place; English: 6^th place)

Kieffer, Hugh H.; Jakosky, Bruce M.; Snyder, Conway W.; Matthews, Mildred S., eds. (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. LCCN 92010951. Retrieved March 7, 2011.
Raeburn, Paul (1998). Mulroy, Kevin (ed.). Mars: Uncovering the Secrets of the Red Planet. National Geographic Society. ISBN 0-7922-7373-7. LCCN 98013991.
Moore, Patrick; Hunt, Garry; Nicolson, Iain; Cattermole, Peter (1990). Garlick, Judy (ed.). The Atlas of the Solar System. Mitchell Beazley. ISBN 0-86134-125-2.
Morton, Oliver (2002). Mapping Mars: Science, Imagination, and the Birth of a World. Picador. ISBN 0-312-24551-3.

archives-ouvertes.fr (Global: 1,143^rd place; English: 973^rd place)

hal-insu.archives-ouvertes.fr

Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars" (PDF). Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Archived (PDF) from the original on November 3, 2020.

artsandculture.google.com (Global: 3,498^th place; English: 2,942^nd place)

"SNAP-19 Radioisotope Thermoelectric Generator Fact Sheet by Energy Research & Development Administration (ERDA) Diagram 2 - The Energy Research and Development Administration". Google Arts & Culture. Retrieved August 9, 2022.

books.google.com (Global: 3^rd place; English: 3^rd place)

Hearst Magazines (June 1976). "Amazing Search for Life On Mars". Popular Mechanics. Hearst Magazines. pp. 61–63.
McCurdy, Howard E. (2001). Faster, Better, Cheaper: Low-Cost Innovation in the U.S. Space Program. JHU Press. p. 68. ISBN 978-0-8018-6720-0.

britannica.com (Global: 37^th place; English: 64^th place)

Kragh, Helge. "Carl Sagan". Encyclopædia Britannica. Archived from the original on November 8, 2023. Retrieved August 9, 2022.

californiasciencecenter.org (Global: low place; English: low place)

"Viking Lander". California Science Center. July 3, 2014. Archived from the original on May 27, 2023. Retrieved April 13, 2018.

discovery.com (Global: 2,064^th place; English: 1,414^th place)

news.discovery.com

Klotz, Irene (April 12, 2012). "Mars Viking Robots 'Found Life'". DiscoveryNews. Archived from the original on April 14, 2012. Retrieved April 16, 2012.

doi.org (Global: 2^nd place; English: 2^nd place)

Soffen, G. A.; Snyder, C. W. (August 27, 1976). "The First Viking Mission to Mars". Science. 193 (4255): 759–766. Bibcode:1976Sci...193..759S. doi:10.1126/science.193.4255.759. PMID 17747776. Archived from the original on February 11, 2023. Retrieved December 21, 2023.
BEEGLE, LUTHER W.; et al. (August 2007). "A Concept for NASA's Mars 2016 Astrobiology Field Laboratory". Astrobiology. 7 (4): 545–577. Bibcode:2007AsBio...7..545B. doi:10.1089/ast.2007.0153. PMID 17723090.
Bianciardi, Giorgio; Miller, Joseph D.; Straat, Patricia Ann; Levin, Gilbert V. (March 2012). "Complexity Analysis of the Viking Labeled Release Experiments". IJASS. 13 (1): 14–26. Bibcode:2012IJASS..13...14B. doi:10.5139/IJASS.2012.13.1.14. hdl:11365/27718.
Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars" (PDF). Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Archived (PDF) from the original on November 3, 2020.

hdl.handle.net (Global: 66^th place; English: 34^th place)

Bianciardi, Giorgio; Miller, Joseph D.; Straat, Patricia Ann; Levin, Gilbert V. (March 2012). "Complexity Analysis of the Viking Labeled Release Experiments". IJASS. 13 (1): 14–26. Bibcode:2012IJASS..13...14B. doi:10.5139/IJASS.2012.13.1.14. hdl:11365/27718.

latimes.com (Global: 32^nd place; English: 21^st place)

Johnson, John (August 6, 2008). "Perchlorate found in Martian soil". Los Angeles Times. Archived from the original on April 19, 2023.

loc.gov (Global: 63^rd place; English: 47^th place)

lccn.loc.gov

Kieffer, Hugh H.; Jakosky, Bruce M.; Snyder, Conway W.; Matthews, Mildred S., eds. (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. LCCN 92010951. Retrieved March 7, 2011.
Raeburn, Paul (1998). Mulroy, Kevin (ed.). Mars: Uncovering the Secrets of the Red Planet. National Geographic Society. ISBN 0-7922-7373-7. LCCN 98013991.

measuringworth.com (Global: 3,470^th place; English: 1,768^th place)

Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.

nasa.gov (Global: 12^th place; English: 73^rd place)

jpl.nasa.gov

Nelson, Jon. "Viking 1". JPL. Archived from the original on October 24, 2023. Retrieved February 2, 2014.
Nelson, Jon. "Viking 2". JPL. Archived from the original on October 8, 2023. Retrieved February 2, 2014.
"Viking Fact Sheet" (PDF). Jet Propulsion Laboratory. Archived from the original (PDF) on March 10, 2012. Retrieved March 27, 2012.

nssdc.gsfc.nasa.gov

Williams, David R. Dr. (December 18, 2006). "Viking Mission to Mars". NASA. Archived from the original on December 6, 2023. Retrieved February 2, 2014.
"Viking 1 Orbiter spacecraft details". NASA Space Science Data Coordinated Archive. NASA. March 20, 2019. Retrieved July 10, 2019.

history.nasa.gov

The Viking Lander Imaging Team (1978). "Chapter 8: Cameras Without Pictures". The Martian Landscape. NASA. p. 22.
Tomayko, James (March 1988). Computers in Spaceflight: The NASA Experience (Technical report). NASA. CR-182505. Archived from the original on May 6, 2023. Retrieved February 6, 2010.

ntrs.nasa.gov

Holmberg, Neil A.; Robert P. Faust; H. Milton Holt (November 1980). "NASA Reference Publication 1027: Viking '75 spacecraft design and test summary. Volume 1 – Lander design" (PDF). NASA. Retrieved February 6, 2010.
Holmberg, Neil A.; Robert P. Faust; H. Milton Holt (November 1980). "NASA Reference Publication 1027: Viking '75 spacecraft design and test summary. Volume 2 – Orbiter design" (PDF). NASA. Retrieved February 6, 2010.

pds.nasa.gov

"PDS: Instrument Information". pds.nasa.gov. Retrieved March 28, 2023.

nationalgeographic.com (Global: 489^th place; English: 425^th place)

news.nationalgeographic.com

Than, Ker (April 15, 2012). "Life on Mars Found by NASA's Viking Mission". National Geographic. Archived from the original on April 15, 2012. Retrieved April 13, 2018.

newscientist.com (Global: 1,041^st place; English: 901^st place)

Chandler, David (December 5, 2006). "Probe's powerful camera spots Vikings on Mars". New Scientist. Retrieved October 8, 2013.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Soffen, G. A.; Snyder, C. W. (August 27, 1976). "The First Viking Mission to Mars". Science. 193 (4255): 759–766. Bibcode:1976Sci...193..759S. doi:10.1126/science.193.4255.759. PMID 17747776. Archived from the original on February 11, 2023. Retrieved December 21, 2023.
BEEGLE, LUTHER W.; et al. (August 2007). "A Concept for NASA's Mars 2016 Astrobiology Field Laboratory". Astrobiology. 7 (4): 545–577. Bibcode:2007AsBio...7..545B. doi:10.1089/ast.2007.0153. PMID 17723090.

nytimes.com (Global: 7^th place; English: 7^th place)

McElheny, Victor K. (July 21, 1976). "Viking Cameras Light in Weight, Use Little Power, Work Slowly". The New York Times. Archived from the original on February 22, 2021. Retrieved September 28, 2013.

planetary-science.org (Global: low place; English: low place)

"The Viking Program". The Center for Planetary Science. Archived from the original on November 20, 2023. Retrieved April 13, 2018.

planetary.org (Global: 4,370^th place; English: 4,136^th place)

"Visions of Mars: Then and Now". The Planetary Society.

researchgate.net (Global: 96^th place; English: 89^th place)

"Mars Lander Retro Propulsion (IAF-99-S.2.02)". Retrieved May 14, 2024.

science.org (Global: 1,007^th place; English: 665^th place)

Soffen, G. A.; Snyder, C. W. (August 27, 1976). "The First Viking Mission to Mars". Science. 193 (4255): 759–766. Bibcode:1976Sci...193..759S. doi:10.1126/science.193.4255.759. PMID 17747776. Archived from the original on February 11, 2023. Retrieved December 21, 2023.

sciencedaily.com (Global: 1,390^th place; English: 1,286^th place)

"Martian Life Or Not? NASA's Phoenix Team Analyzes Results". Science Daily. August 6, 2008. Archived from the original on November 18, 2023.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars" (PDF). Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Archived (PDF) from the original on November 3, 2020.

space.com (Global: 862^nd place; English: 703^rd place)

Howell, Elizabeth (October 26, 2012). "Viking 1: First U.S. Lander on Mars". Space.com. Archived from the original on September 6, 2023. Retrieved December 13, 2016.

ufrgs.br (Global: 4,419^th place; English: 9,808^th place)

astro.if.ufrgs.br

"Viking". astro.if.ufrgs.br. Archived from the original on August 13, 2023.

web.archive.org (Global: 1^st place; English: 1^st place)

Williams, David R. Dr. (December 18, 2006). "Viking Mission to Mars". NASA. Archived from the original on December 6, 2023. Retrieved February 2, 2014.
Nelson, Jon. "Viking 1". JPL. Archived from the original on October 24, 2023. Retrieved February 2, 2014.
Nelson, Jon. "Viking 2". JPL. Archived from the original on October 8, 2023. Retrieved February 2, 2014.
Howell, Elizabeth (October 26, 2012). "Viking 1: First U.S. Lander on Mars". Space.com. Archived from the original on September 6, 2023. Retrieved December 13, 2016.
"The Viking Program". The Center for Planetary Science. Archived from the original on November 20, 2023. Retrieved April 13, 2018.
"Viking Lander". California Science Center. July 3, 2014. Archived from the original on May 27, 2023. Retrieved April 13, 2018.
"Viking Fact Sheet" (PDF). Jet Propulsion Laboratory. Archived from the original (PDF) on March 10, 2012. Retrieved March 27, 2012.
Soffen, G. A.; Snyder, C. W. (August 27, 1976). "The First Viking Mission to Mars". Science. 193 (4255): 759–766. Bibcode:1976Sci...193..759S. doi:10.1126/science.193.4255.759. PMID 17747776. Archived from the original on February 11, 2023. Retrieved December 21, 2023.
Kragh, Helge. "Carl Sagan". Encyclopædia Britannica. Archived from the original on November 8, 2023. Retrieved August 9, 2022.
"Viking". astro.if.ufrgs.br. Archived from the original on August 13, 2023.
Johnson, John (August 6, 2008). "Perchlorate found in Martian soil". Los Angeles Times. Archived from the original on April 19, 2023.
"Martian Life Or Not? NASA's Phoenix Team Analyzes Results". Science Daily. August 6, 2008. Archived from the original on November 18, 2023.
Navarro–Gonzáles, Rafael; Edgar Vargas; José de la Rosa; Alejandro C. Raga; Christopher P. McKay (December 15, 2010). "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars". Journal of Geophysical Research: Planets. Vol. 115, no. E12010. Archived from the original on January 9, 2011. Retrieved January 7, 2011.
Than, Ker (April 15, 2012). "Life on Mars Found by NASA's Viking Mission". National Geographic. Archived from the original on April 15, 2012. Retrieved April 13, 2018.
Klotz, Irene (April 12, 2012). "Mars Viking Robots 'Found Life'". DiscoveryNews. Archived from the original on April 14, 2012. Retrieved April 16, 2012.
Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars" (PDF). Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Archived (PDF) from the original on November 3, 2020.
McElheny, Victor K. (July 21, 1976). "Viking Cameras Light in Weight, Use Little Power, Work Slowly". The New York Times. Archived from the original on February 22, 2021. Retrieved September 28, 2013.
Tomayko, James (March 1988). Computers in Spaceflight: The NASA Experience (Technical report). NASA. CR-182505. Archived from the original on May 6, 2023. Retrieved February 6, 2010.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars" (PDF). Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Archived (PDF) from the original on November 3, 2020.

Viking program (English Wikipedia)

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