It may be infinite, and parts of it are too distant for the light emitted since the Big Bang to have reached Earth or our instruments, placing them outside the observable universe. The European ...

Astronomers setting their sights halfway across the observable universe recently identified the largest amount of individual stars ever detected so far away – a feat once considered near-impossible.

As the universe's expansion is accelerating, all currently observable objects, outside our local supercluster, will eventually appear to freeze in time, while emitting progressively redder and fainter ...

"The observable universe is only that part of the universe ... "And suddenly, as they're outside of all the light sources in our solar system, they realize we don't need as many galaxies as ...

This is just a small part of the universe—less than 1% of the entire observable universe—but it is our galactic neighborhood. And it is good to know the geography of your neighborhood.