Agriculture
Silk’s superpowers
Earth-Friendly Fabrics
Vitamin D-licious Mushrooms
Amphibians
Tree Frogs
Frogs and Toads
Bullfrogs
Animals
Staying Away from Sick Lobsters
Thieves of a Feather
Insects Take a Breather
Behavior
Why Cats Nap and Whales Snooze
Honeybees do the wave
The (kids') eyes have it
Birds
Seagulls
Geese
Finches
Chemistry and Materials
Sticking Around with Gecko Tape
A Spider's Silky Strength
Sticky Silky Feet
Computers
The Earth-bound asteroid scientists saw coming
Computers with Attitude
Supersonic Splash
Dinosaurs and Fossils
Fingerprinting Fossils
The man who rocked biology to its core
The bug that may have killed a dinosaur
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
In Antarctica watch the heat (and your step)
A Dire Shortage of Water
Pollution at the ends of the Earth
Environment
Alien Invasions
Toxic Cleanups Get a Microbe Boost
Power of the Wind
Finding the Past
Fakes in the museum
Your inner Neandertal
A Big Discovery about Little People
Fish
Hagfish
Eels
Flounder
Food and Nutrition
Food for Life
Recipe for Health
Moving Good Fats from Fish to Mice
GSAT English Rules
Who vs. That vs. Which
Order of Adjectives
Capitalization Rules
GSAT Exam Preparation Jamaica
GSAT Scholarship
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
2014 GSAT Results for Jamaican Kids
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
2014 GSAT Results for Jamaican Kids
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Math is a real brain bender
Detecting True Art
Secrets of an Ancient Computer
Human Body
Surviving Olympic Heat
Taking the sting out of scorpion venom
A Fix for Injured Knees
Invertebrates
Moths
Spiders
Caterpillars
Mammals
African Wildedbeest
Golden Retrievers
Donkeys
Parents
Children and Media
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Physics
Project Music
Strange Universe: The Stuff of Darkness
Hold on to your stars, ladies and gentlemen
Plants
Surprise Visitor
Cactus Goo for Clean Water
Sweet, Sticky Science
Reptiles
Alligators
Black Mamba
Snakes
Space and Astronomy
Big Galaxy Swallows Little Galaxy
Witnessing a Rare Venus Eclipse
Gravity Tractor as Asteroid Mover
Technology and Engineering
Morphing a Wing to Save Fuel
Young Scientists Take Flight
Bionic Bacteria
The Parts of Speech
Countable and Uncountable Nouns
Problems with Prepositions
What is a Preposition?
Transportation
Robots on the Road, Again
Reach for the Sky
Charged cars that would charge
Weather
Science loses out when ice caps melt
The Best Defense Is a Good Snow Fence
Warmest Year on Record
Add your Article

Galaxies Divide Sharply Along Color Lines

When most people look at the night sky, they see lots of twinkling white spots. In fact, stars come in a variety of colors, from red to blue. And like soccer teams at a tournament, galaxies seem to organize themselves by hue. Astronomers now report that old, red galaxies clump together much more tightly than do young, blue ones. And there doesn't seem to be any middle ground. The astronomers, from Johns Hopkins University in Baltimore, used data from the Sloan Digital Sky Survey. It's the largest survey of galaxies ever done, with about 50 million galaxies already viewed. The Sloan survey, which uses a telescope in New Mexico, is also unique because it sorts galaxies by color. Old galaxies look red because old, cooler stars give off mostly red light. Young galaxies are full of hot stars that formed more recently and still give off bluish light. After analyzing 2 million galaxies, the researchers noticed two distinct types of galaxy clumping: very tight or very loose, based on age and color. The new finding about galaxy distribution and color might help explain some things about what happens to galaxies as they get older. It might also provide hints about dark matter—mysterious stuff that may fill the Universe, according to some astronomers, even though no one has ever seen it.—E. Sohn

Galaxies Divide Sharply Along Color Lines
Galaxies Divide Sharply Along Color Lines








Designed and Powered by HBJamaica.com™