OriginsAnswer
Is the universe infinite?
The part we can see has a limit, space looks flat, and flat can still mean finite, so here is what the evidence says and why the final answer may stay out of reach.
TOPIC
Universe.
Stories and answers about #Universe
FROM THE QUESTION LIBRARY
Short answers, with sources.
OriginsExplainer
How Did We “Hear” Gravitational Waves?
LIGO measured tiny changes in distance and opened another way to study the universe.
OriginsExplainer
Why Do Stars Shine—and Where Did Our Atoms Come From?
A star’s light comes from fusion. Its long history also helps explain the matter that makes planets and people.
OriginsExplainer
What Does the Big Bang Actually Explain?
The hot early universe has strong observational support; the ultimate beginning remains an open question.