No alien evidence in latest UFO reports, but some 'particularly interesting' cases, Pentagon says
The U.S. government has received more than 700 reports of unexplained phenomena but have found no proof of extraterrestrial ...
The major COVID variants we've seen so far and which one to look out for right now
Stacker consulted research from Yale Medical School and the World Health Organization to find how SARS-CoV-2 has evolved ...