In 2021,
The Guardian identified Knuth as an expert in UFOs, writing that he is "among the UFO researchers who have shared their expertise with high school students."
Space.com identified Knuth as an "active UAP researcher" in 2022. and is a research affiliate of
The Galileo Project for the systematic scientific search for evidence of extraterrestrial technological artifacts at
Harvard University. TPR observed that Knuth was "disappointed there has not been more serious study done by scientists" on the matter of UFOs. According to TPR, Knuth believes the "most likely" explanation for UFOs is they "to assume they're built by a government or an aerospace company", but that if so, it could require "multiple technological leapfrogs". The
Associated Press reported that in 2021 Knuth would be working with the "
U.S. Navy on a research vessel off the
California coast" on UFO-related research. Leonard David in
Space.com noted that Knuth believed scientific research related to UFOs was better decentralized in approach but sharing data, as "independent scientific studies." ==Media appearances==