List of interstellar radio messages

Last updated

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.

Contents

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

Notable transmissions

Stars to which messages were sent include:

TargetDistance (ly)SentExpected ArrivalMessage
Messier 13 25,00016 November 197425974 Arecibo message
Altair 16.715 August 19832000 A Message to Altair (CALL to the COSMOS'83) [1] [2]
16 Cyg A 6924 May 1999 2068 Cosmic Call 1
15 Sge 5730 June 1999 2056
 ?6730 June 19992066
Gl 777 521 July 19992051
 ?6829 August 20012069 Teen Age Message
47 UMa 463 September 20012047
37 Gem 563 September 20012057
 ?573 September 20012058
 ?514 September 20012052
 ?574 September 20012058
Gliese 49 326 July 20032036 Cosmic Call 2
Gliese 208 376 July 20032040
55 Cnc 416 July 20032044
HD 10307 416 July 20032044
47 UMa 466 July 20032049
Polaris 4334 February 20082439 Across the Universe
Gliese 581 20.39 October 20082029 A Message From Earth
Gliese 581 20.328 August 20092030 Hello From Earth
TZ Arietis 14.69 November 20092024 RuBisCo Stars (RuBisCO genetic sequence) [3]
Teegarden's Star 12.59 November 20092021
Kappa¹ Ceti 29.810 November 20092039
HIP 34511140 [4] 15 August 20122152 Wow! Signal Reply [5]
37 Gem (HIP 33277) 57 [6] 15 August 20122069
HIP 4358741 [7] 15 August 20122053
Gliese 526 17.620132031 Lone Signal
Polaris 43310 October 20162450 A Simple Response to an Elemental Message [8]
Luyten b 12.3616 October 20172030 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 (12 May 2008). "【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)". MSN産経ニュース (MSN Sankei News) (in Japanese). Archived from the original on 17 May 2008. Retrieved 18 February 2025.
  2. ↑ Endo, Kazuki (20 August 2023). "'Anybody there?' Astronomers waiting for a reply from Altai". The Asahi Shimbun. Retrieved 18 February 2025.
  3. ↑ Chandler, David L. (24 November 2009), ET: Check your voicemail, MIT News
  4. ↑ "HIP 34511". simbad.u-strasbg.fr. Retrieved 18 February 2025.
  5. ↑ Memmott, Mark (15 August 2012). "Will E.T. Hear Us? Reply To 'WOW! Signal' Gets Beamed Into Space Today". NPR. Retrieved 18 February 2025.
  6. ↑ "HIP 33277". simbad.u-strasbg.fr. Retrieved 18 February 2025.
  7. ↑ "HIP 43587". simbad.u-strasbg.fr. Retrieved 18 February 2025.
  8. ↑ "A Simple Response". European Space Agency official website. 28 July 2016. Retrieved 6 October 2016.
  9. ↑ "How to send a message to another planet". The Economist . 16 November 2017. Retrieved 19 November 2017.
  10. ↑ "Sónar Calling GJ 273b". Sónar Calling. Sónar Music Festival. Retrieved 1 May 2021.
  11. ↑ "BIOMEDIALE". 13 February 2009. Archived from the original on 13 February 2009. Retrieved 9 March 2024.
  12. ↑ Gibbs, W. Wayt (1 April 2001). "Art as a Form of Life". Scientific American. doi:10.1038/scientificamerican0401-40. Archived (PDF) from the original on 20 June 2024. Retrieved 2 April 2025.
  13. ↑ Deep Space Network Frequently Asked Questions, Deep Space Communications Network, archived from the original on 4 January 2010
  14. ↑ List in Space: Calling the Cosmos Gets Commercial, Space_com, 23 March 2005
  15. ↑ Connecting with the Cosmos, CNES, 26 January 2006, archived from the original on 13 May 2010
  16. ↑ Doritos Makes History With World's First ET Advert, Spacedaily.com, 13 June 2008
  17. ↑ Harris, Mark (16 September 2009), Is Sent Forever the worst Apollo 11 tie-in?, TechRadar, archived from the original on 2 March 2010
  18. ↑ Colvile, Robert (9 February 2010), Calling ET: Your chance to send a message to alien life, The Daily Telegraph, archived from the original on 11 February 2010
  19. ↑ An Awkward History of Our Space Transmissions
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