Heaven's Stairway Incident
On May 14, 2021, a large mesoscale convective system (MCS) formed unexpectedly over the city of Columbus, Ohio, engulfing all the planes flying within roughly 200 kilometers of the system center.
As the aircraft involved mysteriously disappeared on air traffic control radar, it was colloquially known as the Heaven's Stairway Incident by aviation authorities.
Aircraft involved
The meterological phenomenon
Links to possible non-Earth causes
Casualties
Wreckage
Several flight recorders were found scattered around fields near Toledo.
A piece of metal, presumed to be a part of an aircraft's engine fan blade, was found near a farm. The farm owner reportedly took the blade as a souvenir.