UFO flying through our solar system was observed in 2017, raising concerns about being a strange spacecraft.
This strange object, called Oumuamua, behaves in a way that is totally at odds with anything else seen before, and invited experts to classify it as guilty, then an asteroid, and finally as a binary object.
Now, almost two years after his discovery, researchers at Yale University and the California Institute of Technology say it is better to consider Omumwu guilty.
"He left many puzzles after his performance," said Darrell Seleigman, study director.
Omuwama has a small but continuous acceleration that many astronomers try to understand.
In a new study, the team points out that this acceleration is caused by venting the gas heated by the sun, which regularly becomes comets.
However, while this hole gives most comets a characteristic "tail", Ummwama doesn't have one.
The team explained that "in the model we propose to Oumwama, the vent gas does not explode from one fixed point on the surface."
This means that, according to scientists, umwamua turns back and forth instead of turning like a typical comet.
Team members say their discovery suggests that almost every star in the galaxy can emit similar objects during the planet's formation process.
However, further research is needed.