A confirmed meteor tore into the atmosphere Saturday afternoon, flashed over New England and splashed into Cape Cod Bay, where NASA says it left behind enough force to rattle thousands of people with a sonic boom. The object was only about three feet wide, but it hit at roughly 75,000 miles per hour and released energy equal to about 300 tons of exploding dynamite.
That is why the event is drawing attention now. NASA and the American Meteor Society have used satellite and radar imagery to reconstruct the path, size and speed of the bolide, turning a sudden flash and boom into a detailed account of what crossed the sky and where it ended up. Satellites picked up the burn-up as the meteor disintegrated, while local radar caught a debris signature closer to the surface.
The reconstruction also explains why so many people heard the blast. Sonic booms from meteors usually happen much higher in the atmosphere, but this object came in at a near-90-degree angle and stayed low enough for the sound to reach the ground in a way that caught New Englanders off guard. The timing made the event feel immediate and local even though the object came from space and vanished in seconds.
The oddest part is what may be left behind. Radar data suggest there is a good chance that a meteorite or pieces of space rock are now sitting somewhere on the bottom of Cape Cod Bay, though no one has confirmed whether they can actually be recovered. The meteor may have been part of the Eta Aquarids, the spring debris field left by Halley’s Comet, but its origin is still not definitively established.
Meteors of this size pass through Earth’s atmosphere only a couple of times a year, yet the odds of one crashing close to home are still so small that the sight of it remains hard to believe. For now, the best answer is that Saturday’s fireball was real, it was fast, and it likely ended its run in the bay. What remains unresolved is whether anyone will ever bring a fragment back from the water and prove exactly what fell.
