Did you know the universe's baby picture is everywhere?
Cosmic microwave background
Did you know the universe's baby picture is everywhere?
Imagine you're looking at a starry sky with a telescope, expecting to see countless stars, but instead, you see a faint glow that's uniform across the sky. This glow is like a cosmic blanket that doesn't change, no matter where you look.
The cosmic microwave background (CMB) is this uniform glow that fills the entire universe. It's like a baby picture of the universe, showing us the conditions just after the Big Bang.
Example
Just as you might see a faint glow in the sky that doesn't change with the stars, the CMB is a constant glow that fills the universe.
Remember this
The CMB confirms the Big Bang theory because it's the universe's baby picture, showing us the conditions right after the Big Bang.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
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