Group 1 - Former President Obama stated in a podcast that "aliens do exist," which sparked significant public interest [1] - Obama clarified that he has not seen any evidence of extraterrestrial life and emphasized the vastness of the universe, suggesting a high probability of life elsewhere but low chances of contact with Earth [1] - A 2025 poll indicated that nearly half of Americans believe the government is hiding evidence related to aliens and UFOs [1] Group 2 - A conspiracy theory claims that the U.S. government is hiding aliens at a highly classified military base known as "Area 51" in Nevada [2] - Area 51 was established during the Cold War for the development and testing of new aircraft, with its existence officially acknowledged by the CIA in 2013 [4] - A declassified document from 2013 revealed that the secret facility was used for aerial testing, including the U2 aircraft, which led to a significant increase in UFO reports [5]