Science for Kids — July 14: A cosmic sugar, a see-through fish, and one telling bone

Professor Pip nudged his crooked spectacles up his nose and grinned at the open dome above his head. A river of stars spilled across the sky, so bright that Mia and Leo could see each other’s faces in the starlight.

“Oh my whiskers, look at that!” Pip whispered. He patted his bulging green lab coat pockets and, with a small “Aha!” pulled out two chunky wooden blocks and a tiny dish of sparkling sugar crystals.

“Sugar?” said Leo, squinting. “For a snack?”

“Not tonight, my curious scientist,” Pip chuckled. “Tonight, our snack is a question.” His tail swished. “Astronomers just found real sugar — the same kind that’s inside raspberries — floating way out there, near the middle of our galaxy. But how does sugar get into space?”

Mia’s eyes went round. “There aren’t any grocery stores up there.”

“Precisely!” said Pip. “So it has to build itself. Watch.” He held up one wooden block. “Pretend this is a tiny piece called glycolaldehyde. Two atoms of carbon. A very small Lego.” He held up the second block. “And this one is ethylene glycol. Also two atoms of carbon. Another small Lego.”

He clicked the two blocks together with a CLACK!

“Ta-da! Four carbon atoms. And that,” Pip said, tapping the joined blocks, “is a real sugar. Scientists call it erythrulose.”

Leo scrunched his nose. “So sugar is just… smaller pieces stuck together?”

“Exactly right! In space, tiny grains of icy dust drift through cold clouds. Little building-block molecules land on the ice. When starlight or a cosmic ray warms the grain, the molecules zip around, bump into each other, and — CLICK — they stick.” Pip clacked the blocks again for emphasis. “Bigger pieces. Then bigger ones. Until, one day…” He pointed to the little dish. “Sugar.”

Mia gasped. “Like snapping Legos together, but in space?”

“Exactly right, Mia!” Pip beamed. “The whole galaxy is a great big chemistry set. Stars aren’t even born yet in some of those clouds, and already — already — the ingredients for cookies, and honey, and you, are being stirred up.”

He looked up through the dome for a long moment. The stars shimmered like scattered sugar of their own.

“Now I wonder,” Pip said softly, “if every star we can see has some tiny sweet cloud tucked around it, just waiting.”

He handed Mia and Leo each a wooden block. “Your turn. See what you can build.”

Professor Pip’s fluffy tail was bouncing so much it nearly knocked over a lantern. On the deck of the Little Compass, a sturdy little research boat, he cradled a large glass jar of seawater against the pink twilight sky.

“Oh my whiskers, Mia, come look, come look!” he cried.

Mia and Leo scampered over. Inside the jar, something tiny and jellylike floated: a delicate fish shape with a completely see-through, dome-shaped head — like a little glass helmet. Two glowing green eyes peered up through the dome.

“Its head is… clear?” Leo whispered.

“Not just clear,” Pip said, “transparent. This is a barreleye fish. Scientists just filmed a real one, alive, deep in the Atlantic Ocean — the first time we’ve ever seen this shy little creature in its own home.”

Mia leaned so close her breath fogged the jar. “Why is it see-through?!”

Pip patted his lab coat and pulled out his tiny brass telescope. “Because down deep — thousands of feet below the waves — there is almost no light. Only faint, faint glimmers from far above.” He pointed the telescope straight up. “The barreleye looks up with those tube-shaped eyes to spot the tiny shadow of dinner passing overhead.”

He held up the jar so the last sunset light shone through it.

“But here’s the tricky bit,” Pip said. “If its eyes stuck out of its head like ours do, they’d be easy for a bigger fish to nibble on. So — very clever — the barreleye tucks its eyes inside its own see-through skull. The skull is like a little window, protecting the eyes while still letting light in from every direction.”

Leo’s mouth hung open. “So it’s… wearing safety goggles made out of its own head?”

“Exactly right!” Pip laughed. “You could say the barreleye invented safety goggles a hundred million years before we did.” His tail swished. “This is called an adaptation — a special feature that helps a creature live in a hard-to-live-in place.”

Mia looked out over the dark water. “There must be so many weird things down there.”

Pip nodded slowly and set the jar on the deck. “Every single dive, we meet a new neighbor we didn’t know we had. Now I wonder…” He tapped the jar softly. “What sort of window would you invent, if you had to live somewhere brand new?”

Professor Pip patted the sandy soil and let out a happy whumf. “Ah! Here we are, my brave paleontologists — a fossil dig in the sun!”

Mia, Leo, and their new friend Asha crouched around a patch of tan rock. In the middle sat one curved fossil bone, about the size of a small backpack.

Asha frowned. “That’s… it? Just one bone?”

“Precisely!” Pip beamed, pulling a soft-bristled brush from his coat pocket. “This week, in a place called Kalasin, in Thailand, real scientists found one single bone just like this one — a vertebra from a dinosaur’s back — and used it to name a brand-new creature. They call him Uragasaurus kalasinensis.”

Leo scratched his head. “But how do you know a whole dinosaur from one bone?”

Pip’s tail swished with delight. “Ah, this is the fun part!” He flipped open his little pocket notebook. On the page was a sketch of a huge long-necked dinosaur next to a tiny human figure.

“Every bone has clues,” Pip said, holding a magnifying glass over the fossil. “The shape of this vertebra tells us it belonged to a group called sauropods — the long-necked, house-tall dinosaurs. The little bumps and grooves tell us which sauropod family, and even when it lived. About 150 million years ago!”

Mia gasped. “How big was it?”

“About twenty meters long,” Pip said, his eyes twinkling. “Longer than a school bus and a half. And with a neck almost as long as a cricket pitch.”

“WHAT!” the kids shouted together.

Pip laughed. “Reading a fossil is a little like reading one page of a big storybook. From one page, you can guess what the whole story looks like — as long as you know how storybooks usually go.”

Asha picked up the paintbrush and gently swept a bit of dust off the bone. “Are the rest of the pages still down there?”

“Very likely!” Pip said. “That’s the wonderful part of paleontology — the science of ancient life. Every year, kids and grown-ups pull more pages out of the ground. Sometimes a claw. Sometimes a rib. And each new piece makes the story sharper.”

He looked out across the dig site.

“Now I wonder,” Pip said softly, “what page we’ll turn up next.”

He handed each child a tiny brush. “Your turn, my scientists. See what stories the ground has hidden.”