Hungry bug seeks hot meal
Fast-flying fungal spores
Getting the dirt on carbon
Tree Frogs
Life on the Down Low
A Whale's Amazing Tooth
The Secret Lives of Grizzlies
A Recipe for Happiness
Two monkeys see a more colorful world
A brain-boosting video game
Chemistry and Materials
A Light Delay
Fog Buster
Boosting Fuel Cells
Supersonic Splash
A Classroom of the Mind
Look into My Eyes
Dinosaurs and Fossils
Winged Insects May Go Way Back
Fossil Fly from Antarctica
From Mammoth to Modern Elephant
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
A Great Quake Coming?
Island of Hope
Recipe for a Hurricane
Nanosponges Soak Up Pollutants
Pumping Up Poison Ivy
Giant snakes invading North America
Finding the Past
The Puzzle of Ancient Mariners
Watching deep-space fireworks
Your inner Neandertal
Pygmy Sharks
Food and Nutrition
Healing Honey
Chocolate Rules
Strong Bones for Life
GSAT English Rules
Subject and Verb Agreement
Whoever vs. Whomever
Problems with Prepositions
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
2014 GSAT Results for Jamaican Kids
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
GSAT Scholarship
Results of GSAT are in schools this week
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Math and our number sense:
Losing with Heads or Tails
How to Slice a Cake Fairly
Human Body
Germ Zapper
Gut Microbes and Weight
Cell Phones and Possible Health Hazards
Praying Mantis
Sun Bear
How children learn
Children and Media
Choosing a Preschool: What to Consider
Thinner Air, Less Splatter
Powering Ball Lightning
Strange Universe: The Stuff of Darkness
Tracking the Sun Improves Plant Pollen
Cactus Goo for Clean Water
Hungry bug seeks hot meal
Space and Astronomy
A Planet's Slim-Fast Plan
Saturn's Spongy Moon
No Fat Stars
Technology and Engineering
Squeezing Oil from Old Wells
Smart Windows
Beyond Bar Codes
The Parts of Speech
What is a Noun
Adjectives and Adverbs
Countable and Uncountable Nouns
Ready, unplug, drive
Reach for the Sky
Flying the Hyper Skies
A Change in Climate
The Best Defense Is a Good Snow Fence
Warmest Year on Record
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Riding to Earth's Core

Ever wonder what you’d find if you could travel to the center of the earth? Someday, we might find out, says geophysicist David Stevenson of the California Institute of Technology. Stevenson has thought up a way to send a probe to Earth’s core. For now, his plan is mostly just a cool idea. Quite a few obstacles keep it from being practical. So far, the deepest anyone has drilled into the earth is 10 kilometers. The hard crust of continents probably goes down at least another 200 kilometers. Below that lies a gooey layer called the mantle, which surrounds a liquid outer core and a solid inner core. Both inner layers are made mostly of iron. Stevenson's idea is to blast a hole 300 meters deep and 10 centimeters wide. Into the hole, he would pour melted iron, which would flow downward and create enough pressure to push the crack to Earth's center. He estimates it would take the probe about a week to get there. Blasting a big enough crack would take about the same amount of energy as that contained in a basic hydrogen bomb. The biggest challenge would be building the probe. The center of the earth gets so hot and there is so much pressure that most metals would melt. Electronic equipment would fall apart. If scientists can ever find a way around those obstacles, they might get a new view of some of Earth's deepest secrets.—E. Sohn

Riding to Earth's Core
Riding to Earth's Core

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