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The mysterious interstellar object 'Oumuamua was a chunk of planet from another solar system, a new study says awoodward@insider.com (Aylin Woodward) © M. Kornmesser/European Southern Obervatory via Reuters An artist's impression shows interstellar object `Oumuamua as it passed through the solar system in October 2017. M. Kornmesser/European Southern Obervatory via Reuters The object baffled scientists: Some think it's a comet, others have suggested an alien spaceship. New research says 'Oumuamua is a piece of a Pluto-like planet from another solar system. The origin and i...

  It might be a good time for the Oxford University Union to schedule a debate between two Arizona State astronomers and Harvard’s intrepid Avi Loeb, author of the recently published Extraterrestrial: The First Sign of Intelligent Life Beyond Earth. “Extraterrestrial,” writes the New York Times Dennis Overbye…”is part graceful memoir and part plea for keeping an open mind about the possibilities of what is out there in the universe — in particular, life. Otherwise, Loeb says, we might miss something amazing, like the church officials in the 17th century who refused to look throu...

Our solar system’s first known interstellar visitor is neither a comet nor asteroid as first suspected and looks nothing like a cigar. A new study says the mystery object is likely a remnant of a Pluto-like world and shaped like a cookie. Arizona State University astronomers reported this week that the strange 45-metre object that appears to be made of frozen nitrogen, just like the surface of Pluto and Neptune's largest moon Triton. The unique object, named Oumuamua, was thought to be highly elongated, about 400 metres long and coloured dark red. It is the first space rock from outside...

A new study says our solar system’s first known interstellar visitor is likely a remnant of a Pluto-like world and shaped like a cookie.

Interstellar object 'Oumuamua may be fragment of a Pluto-like planet CNN 4 days ago By Ashley Strickland, CNN © From William Hartmann/AGU This artist's concept of the 'Oumuamua interstellar object shows it as a pancake-shaped disk. The first observed interstellar object zipped through our solar system in October 2017 -- and astronomers have been trying to understand it ever since. Scientists scrambled to observe the object before it disappeared, moving along at 196,000 miles per hour, and their observations caused more questions than answers about the "oddball," as scient...