Vitamin D-licious Mushrooms
Seeds of the Future
Earth-Friendly Fabrics
Tree Frogs
Poison Dart Frogs
Monkeys Count
How to Fly Like a Bat
Living in the Desert
Swedish Rhapsody
Reading Body Language
Making Sense of Scents
Chemistry and Materials
Hair Detectives
The metal detector in your mouth
Fog Buster
Earth from the inside out
Look into My Eyes
Play for Science
Dinosaurs and Fossils
An Ancient Feathered Biplane
Dino Bite Leaves a Tooth
Tiny Pterodactyl
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
Earth Rocks On
Plastic-munching microbes
Earth from the inside out
Will Climate Change Depose Monarchs?
Pumping Up Poison Ivy
Indoor ozone stopper
Finding the Past
Unearthing Ancient Astronomy
A Long Trek to Asia
The Puzzle of Ancient Mariners
Electric Catfish
Nurse Sharks
Food and Nutrition
How Super Are Superfruits?
The Color of Health
In Search of the Perfect French Fry
GSAT English Rules
Whoever vs. Whomever
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
GSAT Scholarship
GSAT Mathematics
Detecting True Art
Prime Time for Cicadas
Math of the World
Human Body
Music in the Brain
Remembering Facts and Feelings
Football Scrapes and Nasty Infections
Black Widow spiders
Horseshoe Crabs
African Jackal
Tasmanian Devil
How children learn
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Electric Backpack
Einstein's Skateboard
One ring around them all
Bright Blooms That Glow
Springing forward
A Change in Leaf Color
Gila Monsters
Copperhead Snakes
Space and Astronomy
Galaxies Divide Sharply Along Color Lines
A Smashing Display
Catching a Comet's Tail
Technology and Engineering
Musclebots Take Some Steps
Spinach Power for Solar Cells
Reach for the Sky
The Parts of Speech
What is a Verb?
What is a Noun
Middle school science adventures
Tinkering With the Basic Bike
Morphing a Wing to Save Fuel
Either Martians or Mars has gas
A Change in Climate
Recipe for a Hurricane
Add your Article

Sun Flips Out to Flip-Flop

The sun is a strange and turbulent place. The scorching hot ball of gas may look smooth from a safe distance, but dark spots, violent explosions, and massive eruptions constantly come and go on its surface. Scientists have noticed that the sun gets especially stormy every 11 years or soa period known as the solar cycle. At about the same time, our star's magnetic poles suddenly flip: North becomes south. South becomes north. Researchers at NASA's Goddard Space Flight Center in Greenbelt, Md., now think they're getting closer to understanding what causes the sudden switch in direction. Huge clouds of electrically charged particles called coronal mass ejections (CMEs) might have something to do with it, they say. Spit out by the sun from time to time, such clouds can weigh billions of tons. The researchers collected data from two, 11-year sun cycles. For both cycles, the researchers saw an increase in CMEs at the poles of the sun just before the magnetic switch happened. They think the clouds are blasted off the sun, carrying away old magnetic fields and preparing it for the switch. Why does it happen every 11 years or so? That's a question that no one has an answer for yet. Perhaps it's just long enough for the sun to be ready for something different!E. Sohn

Sun Flips Out to Flip-Flop
Sun Flips Out to Flip-Flop

Designed and Powered by™