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Literary Openings, Gadgets and News in Nigeria | Duketundesblog: SATURDAY DIGEST: World's Greatest Unsolved Mysteries (Day 25)

Saturday, 26 December 2015

SATURDAY DIGEST: World's Greatest Unsolved Mysteries (Day 25)

Good Morning Lovelies, Merry Christmas to everyone and Bet you're enjoying the holidays..wow it's the LAST 'SATURDAY DIGEST' this year on DUKETUNDESBLOG and i want to return all glory to the Almighty God for his love and protection over us and to say a BIG thank you to all DTB readers, I can't thank you guys enough for the support and encouragement that i receive everyday..

Today 'THE WOW! SIGNAL joins our growing list of world's greatest unsolved mysteries.
On August 15, 1977, The Wow! Signal got its name when Jerry R. Ehman detected a strong narrowband radio signal, while working on a SETI project at the Big Ear radio telescope of The Ohio State University, then located at Ohio Wesleyan University's Perkins Observatory in Delaware, Ohio. The signal bore the expected hallmarks of non-terrestrial and non-Solar System origin. The signal appears to have come from the northwest of the globular cluster of M55 in the constellation Sagittarius, near the Chi Sagittarii star group.

The entire signal sequence lasted for the full 72-second window that Big Ear was able to observe it, but has not been detected since. The signal has been the subject of significant media attention, and astronomers have tried many times in vain to find the signal again. Impressed by the relative resemblance of the expected signature of an interstellar signal in the antenna used, Ehman circled the signal on the computer printout and wrote the comment "Wow!" on its side, which became the name of the signal itself.

Several attempts were made by Ehman as well as by other astronomers to detect and identify the signal again. The signal was expected to appear three minutes apart in each of the horns, but that did not happen. Ehman unsuccessfully looked for recurrences using Big Ear in the months after the detection.

In 1987 and 1989, Robert H. Gray searched for the event using the META array at Oak Ridge Observatory, but did not detect it. In a July 1995 test of signal detection software to be used in its upcoming Project Argus search, SETI League executive director H. Paul Shuch made several drift-scan observations of the Wow! signal's coordinates with a 12-meter radio telescope at the National Radio Astronomy Observatory in Green Bank, West Virginia, also achieving a null result.

In 1995 and 1996, Gray again searched for the signal using the Very Large Array, which is significantly more sensitive than Big Ear. Gray and Simon Ellingsen later searched for recurrences of the event in 1999 using the 26 m radio telescope at the University of Tasmania's Mount Pleasant Radio Observatory. Six 14-hour observations were made at positions in the vicinity, but nothing like the Wow! signal was detected.
The BIG question is will the Wow! Signal be detected again, How come the signal has not been detected again? Thw Wow! Signal is another big mystery.

Reference: Wikipedia

1 comment:

  1. Interesting. This is my first time of hearing about this.



    Mily's blog



    ReplyDelete

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