What is ‘Oumuamua?

‘Oumuamua is an interstellar object that was first detected by scientists in October 2017. Its name means “scout” or “messenger” in Hawaiian. ‘Oumuamua’s discovery caused a lot of excitement because it was the first object from outside our solar system to be detected.

The object’s elongated shape and high speed sparked speculation that it might be an artificial object created by an extraterrestrial civilization. However, subsequent observations by astronomers ruled out this possibility.

What caused ‘Oumuamua’s strange orbit?

For a long time, the cause of ‘Oumuamua’s strange orbit remained a mystery. However, our research team has now discovered that the answer lies in outgassing.

Outgassing is a natural process that occurs when volatile substances, such as water, trapped in a solid body, are heated by the sun and turn into gas. This gas then exerts a force on the body, causing it to accelerate.

Our team used computer simulations to show that the outgassing of water from ‘Oumuamua’s surface could explain its peculiar orbit. Specifically, we found that the outgassing caused the object to spin faster and faster, like a lawn sprinkler, which resulted in a gradual increase in its speed and a change in its direction.

What does this discovery mean for astrophysics?

The discovery that outgassing is responsible for ‘Oumuamua’s orbit is significant because it provides an explanation for a phenomenon that has puzzled astronomers for years. It also has implications for our understanding of how other interstellar objects behave.

One of the most exciting things about this discovery is that it was made possible by advances in computer modeling and simulation. As we continue to improve our ability to model and simulate astrophysical phenomena, we can expect to make even more groundbreaking discoveries in the future.


Our research team has made a significant breakthrough in the study of ‘Oumuamua. By showing that the object’s strange orbit can be attributed to outgassing, we have solved a mystery that has puzzled astronomers for years. This discovery also has important implications for our understanding of interstellar objects and the use of computer modeling and simulation in astrophysics.

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