Fireball near South Shore—St. Margarets, Nova Scotia
July 14 — ~52 witness reports
A bolide — an exceptionally bright meteor — flashed across the sky near South Shore—St. Margarets, Nova Scotia. The American Meteor Society has logged 52 eyewitness reports and counting.
What is a fireball?
A fireball is a meteor at least as bright as Venus — a piece of asteroid or comet, usually somewhere between a pebble and a washing machine in size, slamming into the atmosphere at 11 to 72 kilometers per second. The light isn’t the rock burning: it’s the air itself, compressed and heated to thousands of degrees, glowing around the object as it decelerates. Most fireballs end their visible flight 20–40 km up; the vast majority of the original object never reaches the ground.
How rare is this?
Earth sweeps up on the order of 100 tons of space debris every day, but nearly all of it is dust. Fireballs bright enough to generate hundreds of witness reports happen somewhere on Earth most weeks — the reason they feel rare is that two-thirds land over ocean and most of the rest over sparsely populated land or in daylight. Seeing one from your own sky is genuinely uncommon: for any fixed spot, a spectacular event like this is a once-in-years experience.
Did anything reach the ground?
Usually not — the object either vaporizes entirely or ends in fragments too small and scattered to find. The telltale signs that meteorites did survive are a very bright terminal flash, sonic booms reported by witnesses on the ground, and a fireball that penetrates deep into the atmosphere before going dark. When those line up, meteorite hunters triangulate witness reports and weather-radar returns to define a search area within days.
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