On May 30, a meteor illuminated the skies over Massachusetts before crashing into Cape Cod Bay, producing a sonic boom heard across the region. In the weeks since the event, an international team of scientists has reconstructed the meteor’s trajectory and origins using data from meteor radar, conventional weather radar, satellite observations, and an extensive network of nearly 200 atmospheric pressure sensors.
The meteor has been classified as a “superbolide,” a term used for exceptionally bright meteors. Estimates suggest the space rock weighed approximately 12,000 pounds and measured about five feet in diameter before entering Earth’s atmosphere. Traveling at nearly 58,000 miles per hour, the meteor's velocity would allow it to cover the distance between Boston and New York City in under 25 seconds.
By retracing its path backward through space, researchers determined that the meteor likely originated from the region near Jupiter’s orbit, about four times the distance from the Sun to Earth. This suggests the rock either came from the main asteroid belt located between Mars and Jupiter or from a comet orbiting near Jupiter. The meteor’s orbit averaged around 227 million miles from the Sun, compared to Earth’s distance of 94 million miles.
As the meteor passed through the atmosphere, it generated a significant energy release. NASA initially estimated this at roughly 1.1 kilotons of TNT, equivalent to 1,100 tons of dynamite. However, some findings indicated a somewhat lower energy output closer to 500 tons of dynamite. The atmospheric pressure sensors allowed scientists to track the meteor’s shock waves across Massachusetts and other parts of New England, underscoring the event’s intensity.
Researchers also noted that the meteor exhibited unusual density and mechanical strength, likely indicating a composition rich in iron. Such properties increase the likelihood that fragments survived the descent through the atmosphere and landed in the bay. Current models estimate that pieces of debris could range from a few ounces to as much as three pounds.
For those interested in recovering fragments, scientists have identified a probable strewn field measuring approximately 1.9 by 2.3 miles near the center of Cape Cod Bay. The water depth in this area reaches a maximum of around 200 feet. Experts emphasize that this event is exceptionally rare, and occurrences of such magnitude so close to populated areas are uncommon.
This comprehensive analysis provides new insights into the origin, composition, and impact of meteors entering Earth's atmosphere, highlighting the potential for future recoveries and study of space material that reaches the planet’s surface.