Sublime

emeritus of physics at Princeton University: “It is an embarrassment that the dominant forms of matter in the universe are hypothetical.”42

Adding all other galaxies in the observable volume of the universe increases the number of habitable planets to a zetta, or 1021—a figure greater than the number of grains of sand on all of the beaches on Earth.

In addition to being small and oddly shaped, ‘Oumuamua was strangely luminous. Despite its diminutive size, as it passed the Sun and reflected the Sun’s light, ‘Oumuamua proved to be relatively bright, at least ten times more reflective than typical solar system asteroids or comets. If, as seems possible, ‘Oumuamua was a few times smaller than the

Discovering the majority of the matter that makes up our universe after decades of confusing it for a vacuum should force us to ponder what else we can’t observe even though it exists.