Springing forward
Hungry bug seeks hot meal
Treating peanut allergy bit by bit
Salamanders and Newts
Tree Frogs
Color-Changing Bugs
Polly Shouldn't Get a Cracker
Awake at Night
Math is a real brain bender
A Global Warming Flap
Swine flu goes global
Chemistry and Materials
The chemistry of sleeplessness
When frog gender flips
Butterfly Wings and Waterproof Coats
Hitting the redo button on evolution
The science of disappearing
The solar system's biggest junkyard
Dinosaurs and Fossils
Winged Insects May Go Way Back
An Ancient Spider's Web
Message in a dinosaur's teeth
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
In Antarctica watch the heat (and your step)
Coral Gardens
Explorer of the Extreme Deep
A Vulture's Hidden Enemy
Indoor ozone stopper
When Fungi and Algae Marry
Finding the Past
Decoding a Beverage Jar
Big Woman of the Distant Past
Stone Tablet May Solve Maya Mystery
Food and Nutrition
How Super Are Superfruits?
Sponges' secret weapon
Moving Good Fats from Fish to Mice
GSAT English Rules
Adjectives and Adverbs
Problems with Prepositions
Capitalization Rules
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
Tarrant High overcoming the odds
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
GSAT Scholarship
GSAT Exam Preparation
GSAT Mathematics
Math of the World
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Math Naturals
Human Body
Germ Zapper
Don't Eat That Sandwich!
Music in the Brain
Hermit Crabs
Sperm Whale
Persian Cats
Choosing a Preschool: What to Consider
Children and Media
Expert report highlights the importance to parents of reading to children!
The Pressure of Scuba Diving
Spin, Splat, and Scramble
Speedy stars
Bright Blooms That Glow
Springing forward
A Giant Flower's New Family
Black Mamba
Sea Turtles
Boa Constrictors
Space and Astronomy
Saturn's New Moons
Zooming In on the Wild Sun
Ringing Saturn
Technology and Engineering
Reach for the Sky
Morphing a Wing to Save Fuel
Supersuits for Superheroes
The Parts of Speech
What is a Verb?
What is a Noun
What is a Preposition?
Tinkering With the Basic Bike
Robots on the Road, Again
Revving Up Green Machines
Either Martians or Mars has gas
Catching Some Rays
Watering the Air
Add your Article

Burst Busters

Explosions on Earth are a pretty big deal. In outer space, though, things are blowing up all the time. Two new studies show that a particularly powerful type of explosion is 10 times as common, but not always as powerful, as astronomers had thought. The explosions are called gamma-ray bursts. One seems to appear whenever a dying star collapses and becomes a spinning black hole or neutron star. Particles burst out of a doughnut-shaped disk that surrounds the collapsed star, producing gamma rays. A leading theory proposes that all gamma-ray bursts have the same amount of energy. In that case, the energy we detect here on Earth mostly depends on how far away the explosion is and how much of the blast is aimed in our direction. New data cast doubt on that assumption. On Dec. 3, 2003, a European satellite called INTEGRAL recorded an unusual gamma-ray burst officially labeled GRB 031203. Two teams, one from Russia and one from California, looked closely at the data. They found that the burst happened in a galaxy that is relatively close to us, just 1.3 billion light-years away. Oddly, though, it had only about one-thousandth as much energy as do bursts that come from much farther away. Analysis of the afterglow confirmed that the burst was a low-energy event. Astronomers might be missing many gamma-ray bursts because they've been looking only for high-energy explosions, the researchers say. In October, the scheduled launch of a satellite called Swift might help resolve the issue. Swift is designed to register fainter bursts than telescopes on Earth normally detect.E. Sohn

Burst Busters
Burst Busters

Designed and Powered by™