Astronomy:List of interstellar radio messages

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This is a list of notable interstellar radio messages (IRMs) transmitted from Earth. Many of these were sent in the aim of searching for extra-terrestrial intelligence (SETI), and are often called 'active SETI' or 'METI' (Messages to Extra-Terrestrial Intelligence) projects.

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.

Notable transmissions

Stars to which messages were sent include:

Target Distance (ly) Sent Expected Arrival Message
Messier 13 25,000 1974 25974 Arecibo message
Altair 16.7 15 August 1983 2000 Message to Altair (CALL to the COSMOS'83) [1][2]
16 Cyg A 69 1999 2068 Cosmic Call 1
15 Sge 57 1999 2056
HD 178428 67 1999 2066
Gl 777 52 1999 2051
HD 197076 68 2001 2069 Teen Age Message
47 UMa 46 2001 2047
37 Gem 56 2001 2057
HD 126053 57 2001 2058
HD 76151 55 2001 2052
HD 193664 57 2001 2058
Gliese 49 32 2003 2036 Cosmic Call 2
Gliese 208 37 2003 2040
55 Cnc 41 2003 2044
HD 10307 41 2003 2044
47 UMa 46 2003 2049
Polaris 433 2008 2439 Across the Universe
Gliese 581 20.3 2008 2029 A Message From Earth
Gliese 581 20.3 2009 2030 Hello From Earth
TZ Arietis 14.6 9 November 2009 2024 RuBisCo Stars (RuBisCO genetic sequence)[3]
Teegarden's Star 12.5 9 November 2009 2021
Kappa¹ Ceti 29.8 10 November 2009 2039
HIP 34511 140[4] 15 August 2012 2152 Wow! Signal Reply[5]
37 Gem (HIP 33277) 57[6] 15 August 2012 2069
HIP 43587 41[7] 15 August 2012 2053
Gliese 526 17.6 2013 2031 Lone Signal
Polaris 433 2016 2450 A Simple Response to an Elemental Message[8]
Luyten b 12.36 2017 2030 Sónar Calling GJ273b[9][10]
14 May 2018 2031

Other projects

Some other projects include:

Whilst not an interstellar message, it is also worth mentioning The Morse Message (1962),[19] which was sent to Venus.

References

  1. ↑ NAGAUCHI, Yosuke (2008-05-12). "【科学】届け宇宙人への電子メール ２５年前に送信、７年後にも返信来る！？ (1/2ページ)" (in ja). http://sankei.jp.msn.com/culture/academic/080512/acd0805120804006-n1.htm. 
  2. ↑ Endo, Kazuki (August 20, 2023). "'Anybody there?' Astronomers waiting for a reply from Altai". https://www.asahi.com/ajw/articles/14985246. 
  3. ↑ Chandler, David L. (24 November 2009), ET: Check your voicemail, MIT News, http://web.mit.edu/newsoffice/2009/sketch-rubisco.html 
  4. ↑ "HIP 34511". https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2034511&submit=SIMBAD+search. 
  5. ↑ Memmott, Mark (2012-08-15). "Will E.T. Hear Us? Reply To 'WOW! Signal' Gets Beamed Into Space Today" (in en). NPR. https://www.npr.org/sections/thetwo-way/2012/08/15/158827877/will-e-t-hear-us-reply-to-wow-signal-gets-beamed-into-space-today/. 
  6. ↑ "HIP 33277". https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2033277&submit=SIMBAD+search. 
  7. ↑ "HIP 43587". https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2043587&submit=SIMBAD+search. 
  8. ↑ "A Simple Response". 28 July 2016. http://blogs.esa.int/rocketscience/2016/07/28/a-simple-response. Retrieved 6 October 2016. 
  9. ↑ "How to send a message to another planet". The Economist. 16 November 2017. https://www.economist.com/news/science-and-technology/21731380-including-clock-some-trigonometry-and-some-jean-michel-jarre-how-send/. Retrieved 19 November 2017. 
  10. ↑ "Sónar Calling GJ 273b". Sónar Music Festival. https://www.sonarcalling.com/en/. 
  11. ↑ "BIOMEDIALE". 13 February 2009. http://biomediale.ncca-kaliningrad.ru:80/?blang=eng&author=davis. 
  12. ↑ Gibbs, W. Wayt (2001-04-01). "Art as a Form of Life" (in en). doi:10.1038/scientificamerican0401-40. https://www.scientificamerican.com/article/art-as-a-form-of-life/. 
  13. ↑ Deep Space Network Frequently Asked Questions, Deep Space Communications Network, archived from the original on 2010-01-04, https://web.archive.org/web/20100104092356/http://deepspacecom.net/faq.html 
  14. ↑ List in Space: Calling the Cosmos Gets Commercial, Space_com, 23 March 2005, http://www.space.com/businesstechnology/technology/050323_space_messages.html 
  15. ↑ Connecting with the Cosmos, CNES, 26 January 2006, http://www.cnes.fr/web/CNES-en/4374-projet-cosmic-connexion.php 
  16. ↑ Doritos Makes History With World's First ET Advert, Spacedaily.com, 13 June 2008, http://www.spacedaily.com/reports/Doritos_Makes_History_With_World_First_ET_Advert_999.html 
  17. ↑ Harris, Mark (16 September 2009), Is Sent Forever the worst Apollo 11 tie-in?, TechRadar, archived from the original on 2010-03-02, https://web.archive.org/web/20100302013157/http://www.techradar.com/news/phone-and-communications/is-sent-forever-the-worst-apollo-11-tie-in--617077 
  18. ↑ Colvile, Robert (9 February 2010), Calling ET: Your chance to send a message to alien life, The Daily Telegraph, https://www.telegraph.co.uk/science/7190726/Calling-ET-Your-chance-to-send-a-message-to-alien-life.html 
  19. ↑ An Awkward History of Our Space Transmissions



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