Think you know all about UFOs? Buckle up. You're about to discover the 10 most credible encounters that will make you question what's really out there.

TOP 10. The Battle of Los Angeles – 1942

This 1942 UFO incident occurred in Los Angeles, USA. Coming shortly after Japan's attack on Pearl Harbor in December 1941, US authorities initially suspected Japanese aircraft. Unable to confirm the identity of the objects, widespread panic ensued, grabbing national media headlines. Many believe it was more likely a UFO encounter.

TOP 9. Colares UFO Incident – 1977

In 1977, unidentified flying objects were spotted over Colares Island in Brazil, with nearly 400 witnesses. The government established an investigative task force, initiating the so-called "Operation Saucer." Witnesses reported being attacked by radiation beams, causing injuries and burns. All evidence gathered by the task force was sealed, making this one of the world's top ten UFO events. Curious for more? Keep reading.

TOP 8. The Phoenix Lights – 1997

On the evening of March 13, 1997, from around 7:30 PM to 10:30 PM, a formation of six lights, strongly believed to be a UFO, was seen over Phoenix. They appeared to be dancing in the sky, witnessed by many who reported the strange lights, rightfully earning its place among the world's top ten UFO events.

TOP 7. Midwestern US Blue-Green Fireballs – 1999

In 1999, the US Midwest experienced at least two major fireball events, less than two days apart. On September 26 at 7:05 AM, over 730 reports came in describing the first one. A second fireball was recorded around 11:30 PM on September 27 over central Ohio, witnessed by more than 450 people, solidifying its status as one of the world's top ten UFO events. Ready for encounters that are harder to explain? Let's keep going.

TOP 6. Tinley Park UFO Events – 2004

Five separate UFO incidents were reported in Tinley Park. The first occurred on August 21, 2004, followed by a second on October 31, 2004. With multiple sightings in a short span, some questioned their authenticity, yet they remain unexplained, landing them on the list of the world's top ten UFO events.

TOP 5. Kolkata UFO Event – 2007

This event happened in the early hours of a day in 2007, at 3:30 AM and again around 6:30 AM, in eastern Kolkata. A rapidly moving object was observed, changing shape irregularly. It emitted a bright beam of light, forming a halo that radiated various colors, making it one of the world's top ten UFO events. As we move closer to the top spots, the sightings become even more compelling.

TOP 4. Chile UFO Event – 2010

During an air show in Santiago, Chile, in 2010, a UFO was captured on video, appearing to interact with or perhaps even "abduct" one of the aircraft. An audience member filmed the air show and discovered the anomaly. Officials provided no explanation, securing its spot among the world's top ten UFO events.

TOP 3. London Olympics UFO Event – 2012

During the opening ceremony of the 2012 London Olympics, some spectators claimed to see a UFO amidst the fireworks display, while others thought it was a helicopter or small plane. According to Olympic staff, no aircraft were permitted in the airspace during the ceremony that day, making this one of the world's top ten UFO events.

TOP 2. Washington Fireball UFO Event – 2012

One evening in 2012, a fireball, possibly a meteor, was observed streaking across the sky near Seattle. Numerous residents, police officers, and the Washington State Patrol reported seeing it. No aircraft were reported missing, and no debris was found on the ground, earning it a place as one of the world's top ten UFO events.

TOP 1. Melbourne UFO Event – 2013

In September 2013, a UFO sighting was reported in Melbourne, Australia. Reports indicated a UFO hovering over central Melbourne, with people capturing the event on their mobile phones and others using infrared cameras, making it one of the world's top ten UFO events.