What does UAP mean and how is it different from a UFO?
THERE'S been lots of talk about UFOs recently but you may have also seen the term 'UAP' cropping up more often. UAP is actually a new term for UFO that is supposed to have less of a stigma attached. UAP stands for 'Unidentified Aerial Phenomena'. UFO stands for 'Unidentified Flying Object'  Many experts in the field found UFO was being ridiculed and reports were not being taken seriously. It's thought UAP is a more professional term and it's becoming increasingly more common as the US begins to seriously discuss UFO/UAP sightings. 2 UAP stands for Unidentified Aerial Phenomena Credit: Getty  The United States Office of Naval Intelligence now has a Unidentified Aerial Phenomena Task Force (UAPTF) program. It collects reported sightings of mysterious flying objects. UAP doesn't necessarily have to refer to a suspected 'alien craft' sighting. Some people think using the term UAP will get sightings taken more seriously. It's thought over 90% of UFO sightings have a reasonable explanation  However, recent footage released by the pentagon of strange flying objects is still baffling experts. Here's what you need to know... The Fermi Paradox isn't strict evidence for alien life  but more of a thought experiment  It's a famous contradiction posed by physicist Enrico Fermi  Fermi suggested that the enormous size of the universe  and the billions of Sun-like stars in the galaxy, and their planets  makes it highly likely that there is intelligent life out there  Some of these civilisations may have developed interstellar travel  But Fermi also noted that there's a significant lack of evidence for life on other planets  The chances of aliens being able to reach us are high, but there's no evidence that aliens ever have  This paradox has baffled scientists for decades  Bill Clinton says there are UFOs 'flying around' and is confident there is 'life somewhere else'  Most read in Science WAT-ER DISCOVERY! Eerie wreck found GAMERS' PARADISE E3 2021 LIVE - World's biggest gaming conference happening TODAY GAMES GALORE Our picks of the BIGGEST new titles revealed at E3 2021 INCOMING! Apple quietly reveals SEVEN new iPhones 'coming THIS year' SMOKES OUT BUG British-made 'Covid alarm' can detect disease in crowded room within 15mins LOOK TO THE SKY Solar eclipse visible to millions around the world TODAY - live updates  In other space news, the European Space Agency has revealed it will be sending a probe called EnVision to study the planet Venus. Scientist Brian Cox believes there could be 200 billion alien civilisations in the universe. And, the worlds first reality show filmed in space will follow a contestant on a 10-day trip to the ISS in 2023. We pay for your stories! Email us at tech@the-sun.co.uk