Renowned filmmaker Steven Spielberg has long created some of the most memorable alien characters on screen. Now, the 79-year-old director claims he knows a thing or two about extraterrestrials in real life as well. In an interview promoting the new sci-fi blockbuster Disclosure Day, Spielberg stated he is certain that aliens have already visited Earth. Speaking to CBS News, he said, “I absolutely believe they have been here and are still here. Who knows, maybe they have always been here.”
The director of Close Encounters of the Third Kind added that his belief stems from various pieces of circumstantial evidence gathered over a lifetime—ranging from personal accounts and documentaries to testimonies heard in Congress. This report was published by the Daily Mail online.
Now, some scientists suggest there might be a grain of truth to Spielberg’s words. Dr. Jacco van Loon, an astrophysicist at Keele University, says it is a possibility. He noted that if they had visited Earth a billion years ago, they would have encountered a world teeming with oceans and microbes but devoid of land-based vegetation. In his view, they might have left no trace on Earth; however, one possibility is that they could have left something behind on the Moon or elsewhere in the solar system for surveillance or observation purposes.
According to the majority of scientists, while life elsewhere in the universe is possible, the greatest obstacle to an advanced extraterrestrial civilization reaching Earth is the incredible distance between stars. Dr. Thomas Haworth of Queen Mary University points out that even the fastest human-made spacecraft, the Parker Solar Probe, would take 6,500 years to reach the nearest star, Proxima Centauri. He explains that the sheer scale of this distance and time is difficult to comprehend; thus, interstellar travel faces limitations imposed not just by technology, but by fundamental physics.
Dr. [Name], an astronomer at the University of Hertfordshire… William Alston states that the speed of light is the universe’s ultimate speed limit. According to him, no object with mass can travel faster than this, making interstellar travel a process that takes an immense amount of time.
Dr. van Loon notes that, due to relativity, time slows down for a traveler approaching the speed of light, making the journey seem relatively faster to them; however, this could result in their becoming cut off from their own civilization. Professor Michael Garrett, a SETI researcher at the University of Manchester, points out that while Spielberg is a brilliant filmmaker, his work does not constitute scientific evidence. He argues that since Earth is just one of billions of planets in the universe, the idea that aliens would specifically choose to visit Earth is highly illogical. He adds that if aliens had actually visited, we would possess far more concrete evidence than mere blurry videos or anecdotes.
Scientists have yet to find any credible evidence that extraterrestrial life has visited or is visiting Earth. Radio telescopes have also failed to detect signals from any advanced civilizations. Professor Carol Oliver of the University of New South Wales in Australia states there is no credible evidence of aliens visiting Earth. She suggests that when lights or UAPs (Unidentified Aerial Phenomena) are spotted in the sky, one should seek more rational explanations before attributing them to aliens.
During the Apollo 11 mission in 1969, astronaut Buzz Aldrin observed a light in the sky that many interpreted as a UFO. However, he later explained that it was likely a detached rocket component or a panel reflecting sunlight. He remarked that extraordinary claims require extraordinary evidence. While the existence of life elsewhere in the universe is plausible, the vast distances between stars make interstellar travel nearly impossible.
