A new research details how angiosperms appeared and became dominant during the age of dinosaurs and how they have changed over time
The US Navy confirmed to various US media outlets that declassified military videos posted online purporting to show UFO sightings are authentic.
One of the videos shows an incident from 2004, and the other two were recorded in January 2015, according to Sue Gough, a Defense Department spokeswoman.
The videos became public after unauthorised leaks in 2007 and 2017, and the Navy previously verified their authenticity.