The final gasps of the Crab Head nebula were observed as it went supernova.
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Spain and Portugal signed the Treaty of Saragossa.
President Richard Nixon died of a stroke at the age of 81.
Thieves stole $3.3 million from the First National Bank of Arizona in Tucson.
Sir Robin Knox-Johnston completed the world's first non-stop, single-handed global circumnavigation.
A controversial bill to send asylum seekers to Rwanda was approved by the UK's parliament.
