Tuesday, November 21
Mysterious object confirmed to be from another solar system
Artist's impression of `Oumuamua, the first confirmed interstellar asteroid
"Astronomers are now certain that the mysterious object detected hurtling past our sun last month is indeed from another solar system. They have named it 1I/2017 U1(’Oumuamua) and believe it could be one of 10,000 others lurking undetected in our cosmic neighbourhood. The certainty of its interstellar origin comes from an analysis that shows its orbit is almost impossible to achieve from within our solar system. Its name comes from a Hawaiian term for messenger or scout. Indeed, it is the first space rock to have been identified as forming around another star. Since asteroids coalesce during the process of planet formation, this object can tell us something about the formation of planets around its unknown parent star. ..."
W - 'Oumuamua
BBC: Bizarre shape of interstellar asteroid
YouTube: First Interstellar Asteroid Wows Scientists
‘Oumuamua is rocketing through our Solar System at 44km a second.