The Big Bang Story
The Big Bang Story — an illustrated science story. 10 illustrated pages, free to read on Wonder Science.

Page 1

A sudden, deep blast from a foghorn echoed across Fisherman's Wharf, making Hana jump. "Whoa! That was loud!" she shouted to her father over the barking of sea lions. He laughed, putting a steadying hand on her shoulder. "It sure was, but it made me wonder, where did the very first sound come from? Where did everything begin?"
Page 2

Her father knelt down, his expression thoughtful. "That's the biggest question there is, Hana! Scientists have a name for that beginning: the Big Bang." He pointed up at the vast blue sky peeking through the fog. "They believed the answer wasn't on Earth, but was hidden in faint whispers from the stars, if they only knew how to listen."
Page 3

To find that whisper, we have to travel back in time to the 1920s. Back then, most scientists imagined a universe that was calm, eternal, and unchanging. They couldn't hear the distant rumble of creation because they weren't expecting to hear anything at all.
Page 4

"But a Belgian priest and astronomer named Georges Lemaître had a radical and creative new idea," her father's voice explained. Lemaître looked at Albert Einstein's new equations and saw something incredible hiding inside them. He realized the math didn't describe a static universe, but one that was growing!
Page 5

Lemaître proposed that if the universe is expanding now, it must have been smaller yesterday. "If we go back far enough," he argued passionately to his colleagues, "everything must have begun from a single point of creation! A primeval atom—a day without a yesterday!"
Page 6

Years later, American astronomer Edwin Hubble provided the first proof. Looking through the powerful Mount Wilson telescope, he saw that all the distant galaxies were rushing away from us. It was as if the entire fabric of space was stretching, carrying everything with it.
Page 7

The final clue came in 1964, not from a telescope but from a giant radio antenna. Two scientists, Arno Penzias and Robert Wilson, detected a mysterious, persistent static hiss coming from every direction in the sky. They cleaned their equipment and chased away pigeons, but they couldn't get rid of the noise!
Page 8

Hana's eyes went wide as she looked at her father back on the pier. "So the hiss wasn't a problem with their antenna?" she gasped. "It was the echo! The leftover glow from the Big Bang!" Her father grinned, nodding. "Exactly! The oldest light in the universe, finally discovered."
Page 9

Just then, Hana's mother arrived with warm sourdough bread bowls. "Speaking of big things from small beginnings," her mother said, handing one to Hana. Her father added, "It reminds me of what the astronomer Carl Sagan said: 'We are a way for the cosmos to know itself.' Asking these questions is the universe figuring itself out!"
Page 10

"So the whole universe, every star and every person, was once packed into a space smaller than a single atom," Hana summarized, her voice full of awe. Her father looked up at the first star appearing in the twilight sky. "It was," he said, "but that makes me wonder... if the universe was once so incredibly dense, what happens inside something super-dense now, like a black hole?"
About this story
- Audience: kids (ages 6–12)
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