The Massachusetts Bolide: Witnessing a Once in a Generation Event

As a long time smoker who isn’t allowed to smoke in my home, I spend a fair amount of each day sitting on my front porch for a few minutes at a time enjoying a few drags on a cigarillo before carefully extinguishing it for later use and heading back inside. During the day, I spend that time on my porch frequently looking at the passing clouds trying to imagine what the Hurricane Hunter Satellite constellation my company is developing might observe and measure (see The Hurricane Hunter Satellites: A Weather Nanosatellite Constellation). In my role as the Chief Scientist of that company, and unlike most “normal” New Englanders, a small piece of me is actually disappointed when there is a clear blue sky with no clouds to be seen and nothing for my satellites to measure.

All that changes come nighttime when a clear sky means I have an unobstructed view of the sky to the south from my porch where I get to indulge in my lifetime passion as an astronomer. While I get to see the occasional aircraft hugging the southern horizon as they take off from Boston’s Logan International Airport some 40 kilometers to the south of my home on the Massachusetts coast, I get to enjoy a clear view of familiar constellations as they slowly move across the celestial sphere over the course of the night and the seasonal changes in those patterns as the year progresses. Every now and then, I also get to see a brief flash of a random meteor streaking across the sky. And on very rare occasions, I witness the arrival of a very bright meteor known as a bolide. At those times, I often wonder what would happen if one of those meteorites penetrated deep enough into the atmosphere to actually create a sound or even strike the ground. On May 30, 2026, I got to experience that firsthand.

I was enjoying a late lunch at home with my wife on that cool and rainy Saturday afternoon when a few minutes past 2 PM EDT, we heard a very loud boom from the south accompanied by a sharp shockwave which shook the house and rattled the windows. After a stunned few seconds wondering what it was, I immediately went outside into the rain to investigate. Oddly enough, every guy on my street from their 20s to their 60s (like myself) had also come outside to figure out what it was… I figure that the women were smart enough to stay inside out of the rain. We all were wondering the same thing: was it thunder or a large tree coming down with a powerful thud? But I knew from my own experience that the loud boom with a sharp shockwave was an explosion of some kind. After scanning the horizon for signs of smoke or any other indication of the sound’s source, I retreated from the rain and back to my lunch.

As soon as I finished lunch, I went online to see if I could find out the source of the explosion. As luck would have it, I came across a live feed from meteorologist Matt Noyse on Facebook. I had known Matt and his wife Danielle (who is an alum of the University of Massachusetts – Lowell, like myself) from their years as meteorologists on the local New England Cable News. They now have their own weather business called 1 Degree Outside with frequent online videos detailing the local weather. As luck would have it, Matt was talking about the explosion we had heard. By that point, the explosion had been clearly heard from southern Rhode Island and up the Massachusetts coast to New Hampshire and southern Maine. It was not a conventional explosion because there were no reports of damage from the region. Since the local seismometers of the US Geological Survey didn’t pick up anything, an earthquake was eliminated as a possible cause. And since any severe weather that could cause a powerful lightning strike was dozens of kilometers off the coast of Cape Cod, lightning wasn’t the culprit either. Finally word came out that the GOES Lightning Monitor (GLM) on NOAA’s GOES 19 weather satellite in geosynchronous orbit had detected an intense flash in a weak part of the coastal storm that could not produce lightning. A bright meteor or bolide then became the best explanation for the loud explosion we heard.

A closeup view from GOES 19 showing the Massachusetts bolide on May 30, 2026. This is a GOES Geocolor image acquired at 18:11 GMT with an overlay of data acquired by the GLM (GOES Lightning Monitor) over the previous five minutes. The bright flash over Cape Cod Bay is the bolide while the much dimmer reading in the lower right corner is lightning from a passing coastal storm. Click on image to enlarge. (NOAA)

I quickly located online a composite Geocolor GOES image from 18:11 GMT (2:11 PM EDT) with an overlay of GLM data acquired over the previous five minutes and there it was: A huge flash larger than typical lightning activity centered about half way between the tip of Cape Cod and Boston’s South Shore communities about 80 kilometers SSE of my home just north of Cape Ann. Over the hours to come, we started getting more details. A hunk of rock about a meter across had slammed into the atmosphere at an estimated speed of about 34 kilometers per second and disintegrated at about 2:06 PM EDT at an altitude of about 64 kilometers high in the mesosphere above Cape Cod Bay. Because of heavy cloud cover at the time, this bolide was not directly seen locally but there have been some sightings reported (including some video) from places like eastern New York where the skies were clear. The estimated energy released by this explosion was the equivalent of 300 tons of TNT – in other words, about a third of a kiloton. It would have taken around five minutes for the shockwave from that explosion to travel to my home where my neighbors and I heard it.

Subsequent analysis by NASA using the detection of the falling debris by local National Weather Service radars showed that it came down at about 41.88° N, 70.35° W in the middle of Cape Cod Bay. With the typical water depth of around 30 meters, it is unlikely that any meteorite fragments will ever be recovered. While the popular press has claimed that enterprising meteorite hunters could trawl the area with a magnet in hopes of snagging a piece, this approach is unlikely to work. The vast majority of meteorites are known as chondrites which have a stony composition with not enough free iron and nickel present to adhere to a strong magnet. While the recovery of any meteorites is highly unlikely, I did have the once-in-a-generation experience of hearing an explosion of a meteor.