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skprbob · 02-26-2018, 10:39 AM

Sounds like a particularly large (>20 m) meteor called a "bolide". These produce a very bright contrail which can be seen during the day. They also occasionally explode in a very bright fireball and/or produce enough debris for an impact. Two impacts that are famous are the so-called "Tunguska" event in Siberia and the "Chelyabinsk" event, also in Siberia, five years ago. Google "bolide" for more info.

02-26-2018, 10:39 AM	#5
skprbob Senior Member Join Date: Sep 2006 Location: 19 Mile Bay Posts: 147 Thanks: 0 Thanked 90 Times in 29 Posts	skylights Sounds like a particularly large (>20 m) meteor called a "bolide". These produce a very bright contrail which can be seen during the day. They also occasionally explode in a very bright fireball and/or produce enough debris for an impact. Two impacts that are famous are the so-called "Tunguska" event in Siberia and the "Chelyabinsk" event, also in Siberia, five years ago. Google "bolide" for more info.