They have been working with an global team, including Dr Petr Pravec of the Academy of Sciences of the Czech Republic, Dr Colin Snodgrass from The Open University and Igor Smolic from the University of Belgrade.
The interstellar rock was immediately recognised as unusual when it was spotted by astronomers in Hawaii.
That search proved fruitless, but Dr Wesley Fraser at Queen's University Belfast and his collaborators have published a series of studies since the discovery of the alien object in which they have attempted to comprehensively unravel its mysteries.
The first asteroid from outside our solar system came flying towards us at 97,200mph (156,428km/h) after colliding with another cosmic body billions of years ago.
The object, which has been named 'Oumuamua, sped across our solar system in October and was originally thought to be a comet.
Oumuamua "appears to be in an excited rotational state undergoing non-principal axis rotation" the study authors wrote.
"Our results are really helping to paint a more complete picture of this odd interstellar interloper", said Dr Fraser.
By analysing the brightness measurements of the object - and how these changed over time - the scientists realised Oumuamua was not spinning periodically like most solar system bodies, but instead spinning chaotically.
This sort of movement has been seen in Solar System objects that are much smaller and more traditionally asteroid-shaped than 'Oumuamua, and it can be caused by a number of different factors.
Dr Fraser explained: "Our modelling of this body suggests the tumbling will last for many billions of years to hundreds of billions of years before internal stresses cause it to rotate normally again".
But, at least for the next few billion years, the space invader is destined to continue its topsy-turvy spin.
"While we don't know the cause of the tumbling, we predict that it was most likely sent tumbling by an impact with another planetesimal in its system, before it was ejected into interstellar space".
That's the summation on "Oumuamua, the new and the mysterious 'alien probe" asteroid that was seen in October by the earth's telescope.
The team has also established that 'Oumuamua has a spotty surface, with one long red face and a neutral colour like dirty snow across the rest. Initially believed to be a comet, then an asteroid, scientists think the wandering "interstellar object" is a hunk of ice wrapped in organic sun-blocking material. The researchers don't know exactly when this happened, but suspect it took place before the object left its home stellar system.