What if the interstellar body Oumuamua really was sent by aliens? | Notes and queries
by Guardian Staff from on (#3AK6J)
The long-running series in which readers answer other readers' questions on subjects ranging from trivial flights of fancy to profound scientific concepts
OK, so a mysterious, cigar-shaped, 400m-long object is speeding through the solar system and astronomers are checking it for evidence of alien technology. So what do we do if it turns out that Oumuamua, as they have named it, is broadcasting extraterrestrial radio signals?
John Chambers, Leeds
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