The event baffled witnesses, who guessed it could have been a plane burning up or a meteor. 'Fireball' was likely rocket booster re-entryIt now appears the "fireball" was likely the Antares rocket body used to propel the Cygnus spacecraft on its way to the International Space Station. North American enthusiasts tracking the rocket body online have connected the bright light seen in the Prairies to the timing and location of the re-entry. According to the Aerospace Corporation, this was the predicted ground track of the Antares rocket body re-entry from space. Streak moved slowly: witnessLorne Warkentine, who lives near North Battleford, Sask., also thought the bright light could have been a plane on fire.

Source: CBC News November 25, 2017 18:08 UTC