The brief interstellar visitor ‘Oumuamua left many mysteries in the wake of its zippy flight through the solar system.
The changes in its brightness imply it was a cigar-shaped, tumbling body, but we never saw it close enough to know its true contours.
We don’t know exactly what it was made of. We don’t know where it came from, although we suspect it was kicked out of another star system by a giant planet.
One of the strangest enigmas, however, is that ‘Oumuamua appeared to hit the gas on its way out of the inner solar system.
A young woman who went hiking in a dangerous country alone has been found dead.