'Oumuamua' object probably came from solar system with two suns

The large cigar-shaped object 'Oumuamua' was likely ejected from a solar system with two suns.
By Tyler MacDonald | Mar 20, 2018
The "Oumuamua," a large, cigar-shaped object that flew past the sun at 160,000 miles an hour, is probably from a solar system with two suns,according to NBC News.

While initial speculation surrounding the 400-meter-long object suggested it was a comet or alien spacecraft, scientists are putting these theories to rest and suggesting the it was an interstellar steroid from another solar system. A new study suggests that it was ejected from a solar system with two suns.

"For me as an astronomer, the idea that we have now seen an object up close that not only came from another star system, but one that is very different from our own, was awe inspiring," said Alan Jackson, an astronomer at the University of Toronto Scarborough and lead scientist of the study.

Jackson and his team performed 2,000 computer simulations of binary star systems containing a small body like Oumuamua. Such bodies typically become unstable when they approach the center of the system, although it was unclear whether it would hit a star or be ejected.

"We found that the overwhelming result is ejection with almost none of the small bodies hitting one of the stars," Jackson said. The finding suggests that over 95 percent of objects like Oumuamua come from binary star systems. And in this case, Oumuamua is of the majority.

However, its exact origin is still a mystery.

"Oumuamua could well have been out there for hundreds of millions of years. Unfortunately, because it came through our solar system very fast and was only discovered when it was already on its way out, our observations of Oumuamua are quite limited."

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