Our journey to comprehend the Universe’s edge begins with the concept of the observable Universe. This term refers to the ...

The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because ...

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.

Whereabouts in that (admittedly oversimplified) scenario did we manage to lose sight of the observable universe? A lot of it comes down to the fact that traditionally, organizations need multiple ...

Astronomers heading the search for extraterrestrial intelligence predict their quest might first spark an encounter with ...