Unidentified flying object

Sometimes people see strange things in the sky.

These are called UFOs. That name means we do not know what they are yet.

Many of these sights have simple answers. They might be a bright star or a bird. Some are just balloons or clouds.

Sometimes light plays tricks on our eyes. A mirage can make things look like they are floating. This can happen near the horizon.

People have seen strange lights for a long time. Some stories are very old. They come from hundreds of years ago.

Scientists keep looking for answers. They want to know what is happening up high.

People have seen strange things in the sky for a long time. These are called UFOs. This name means "unidentified flying object." It is used for any object in the sky that we cannot explain. Today, many people also use the term UAP. This stands for "unidentified aerial phenomena." This name is used to avoid old ideas about aliens.

Most UFO sightings have a simple answer. Scientists study these reports to find the truth. Many sightings are just normal things. They might be birds, clouds, or bright stars. Some are made by human technology. This includes planes, drones, or even weather balloons.

Sometimes, light plays tricks on our eyes. A mirage can make objects look like they are floating. One type is called a Fata Morgana.

This happens near the horizon. Other sightings might be caused by things like moon dogs or lens flares.

While some people believe UFOs are from other worlds, most are just natural events or human machines.

An unidentified flying object, or UFO, is something seen in the sky that cannot be explained. This term describes any object or event in the air that people do not recognize. Today, many experts use a new name called UAP. This stands for unidentified aerial phenomena. People use this newer term to avoid old ideas about aliens. Most sightings are actually known things once they are studied closely.

Most UFO reports have a simple, real explanation. Many sightings turn out to be ordinary objects like birds or clouds. Some are caused by human technology, such as drones or weather balloons. Bright stars and planets can also look like strange lights. Sometimes, light plays tricks on our eyes through a mirage. One type is called a Fata Morgana, which makes objects look like they are hovering.

People have recorded strange sights in the sky for many centuries. In 240 BC, Chinese astronomers recorded Halley's Comet as a strange guest light. In the 11th century, a scholar named Shen Kuo wrote about a bright object. This object reportedly had doors and cast long shadows. Much later, in 1897, newspapers reported on mystery airships across the United States. Some people even thought Thomas Edison made them, but he said they were fakes.

In 1947, Captain Edward J. Ruppelt created the term UFO for the United States Air Force. He chose this name because "flying saucer" was not accurate for every shape. The military wanted a more general way to describe these objects. During the 1950s, the term became very popular in books and movies. Later, the government started programs like Project Blue Book to study these reports. Today, NASA and the Department of Defense still collect data on these events.

Understanding UFOs is like being a detective in a mystery story. Scientists look for evidence to see if claims are true. Most researchers find that sightings are just natural events or human machines. Some people believe these objects come from other worlds or time travelers. However, the evidence needed to prove those ideas has not been found yet. Studying the sky helps us learn more about our world and how we see it.

An unidentified flying object (UFO) is any object or phenomenon seen in the sky that has not yet been identified or explained. While the term is often associated with science fiction, it is a technical designation for any aerial anomaly. In recent years, many officials and scientists have shifted toward using the term Unidentified Aerial Phenomena (UAP). This newer term, or Unidentified Anomalous Phenomena, is used to avoid the negative cultural associations linked to the word UFO. Despite various theories, most sightings are eventually identified as known objects or natural atmospheric events.

When investigators look into these reports, they follow a process of elimination to find the cause. Most sightings are eventually linked to ordinary objects or natural phenomena. These can include human technology like aircraft, drones, or satellites like the International Space Station. Many reports involve astronomical objects, such as bright stars, planets, or the Moon. Some sightings are caused by light phenomena, such as a Fata Morgana. A Fata Morgana is a type of mirage where objects below the horizon appear to hover in the sky.

Other sightings result from atmospheric or biological sources. For example, birds, clouds, dust, or even weather balloons can appear unusual in the sky. Even rocket launches can create strange visual effects, such as the twilight phenomenon seen during a SpaceX Falcon 9 launch.

Some reports are even attributed to psychological effects. These include optical illusions, hallucinations, or phenomena like pareidolia, where the brain perceives familiar shapes in random patterns. Research by Allan Hendry in 1979 suggested that fewer than one percent of cases were intentional hoaxes. Most were simply honest misidentifications caused by inexperience or misperception.

Humanity has recorded unusual aerial sights for thousands of years. In 240 BC, Chinese astronomers recorded Halley's Comet, which they sometimes viewed as a strange "guest light." In the 11th century, the scholar Shen Kuo recorded testimony about a bright object with opening doors. In the 16th century, woodcuts like the one showing the celestial phenomenon over Basel depicted strange sky spectacles.

In the late 1890s, the United States saw a wave of reports regarding "mystery airships." Some people even suspected Thomas Edison had created a flying artificial star, though Edison dismissed the reports as fakes. During World War II, pilots reported glowing fireballs known as "foo fighters," which were later explained by various scientific possibilities.

The modern terminology of UFOs began with the United States Air Force. In 1947, Captain Edward J. Ruppelt coined the acronym UFO. He argued that the popular term "flying saucer" was misleading because objects came in every conceivable shape. The term became widespread in the 1950s through technical literature and popular media. During this era, the government conducted investigations such as Project Blue Book. While some groups, known as ufologists, claim these objects are extraterrestrial or from other dimensions, scientific evidence for such claims has not been found. Scientists often use critical thinking to investigate these claims, much like a detective solving a mystery.

Today, the study of these phenomena is handled by official government entities. The United States government uses two main groups for data collection and analysis. These are NASA's UAP independent study team and the Department of Defense All-domain Anomaly Resolution Office. These organizations aim to provide scientific rigor to the study of anomalous objects. By collecting data, they hope to move beyond folklore and toward factual understanding. This work helps separate actual physical anomalies from mere stories or myths.

Understanding UFOs connects to several broader fields of study. Social scientists look at the interest in these objects as a form of modern folklore or mythology. This helps explain why these stories remain so popular in culture. Philosophers also study these phenomena through the lens of epistemology. Epistemology is the study of how we know what we know. When an object is seen but cannot be explained, it creates a challenge for our understanding of reality. This makes the study of the sky a way to explore both science and the human mind.