25
Health & Science2h 43m ago

The observable universe is approximately 93 billion light-years in diameter, despite the universe being only 13.8 billion years old, due to the expansion of space.

Observable Universe

Who
N/A
What
The observable universe is approximately 93 billion light-years in diameter, despite the universe being only 13.8 billion years old, due to the expansion of space.
When
Wed, 15 Jul 2026 20:30:34 GMT · 2h 43m ago
Where
Observable Universe ·
Why
Space has been expanding since the Big Bang, carrying distant galaxies further away from us even as light travels towards us.
The Frontline Impact

How this affects you

This phenomenon explains the vast size of the observable universe relative to its age, a key concept in cosmology.

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