A NASA scientist says they observed an unidentified flying object over the United States that appeared, in their description, to resemble a “giant nuclear weapon.” According to the account published by the outlets, the object reportedly moved or “stalked” the witness before disappearing into the sea.

The reports also claim that the U.S. Air Force took some form of action in response, though details are limited in the published summaries. Both sources present the incident through the perspective of the scientist and do not provide independent corroboration or specific technical evidence in the text provided.

Because the information comes from the scientist’s account as repeated by the same outlet family, the differing “angles” across the two items largely reflect similar framing—emphasizing the witness’s description and the claimed military response—rather than offering contrasting findings, measurements, or official investigative results.