Science News Roundup: Pentagon UFO report says most sightings 'ordinary objects' and phenomena

Following is a summary of current science news briefs.

Pentagon UFO report says most sightings 'ordinary objects' and phenomena

A Pentagon report on unidentified flying objects said U.S. government investigations since the end of World War Two have found no evidence of extraterrestrial technology and had concluded that most sightings were misidentified ordinary objects and phenomena. The report released on Friday follows on from a 2022 Pentagon announcement that its then newly formed All-domain Anomaly Resolution Office (AARO) had not found any evidence to suggest that aliens have visited Earth or crash-landed here.