Making the most of a meal
Earth-Friendly Fabrics
Growing Healthier Tomato Plants
Salamanders and Newts
Tree Frogs
Gliders in the Family
Vent Worms Like It Hot
Eyes on the Depths
Honeybees do the wave
Body clocks
Fighting fat with fat
Tropical Birds
Flightless Birds
Chemistry and Materials
Small but WISE
Nanomagnets Corral Oil
Toxic Dirt + Avian Flu = Science Fair Success
The Earth-bound asteroid scientists saw coming
Supersonic Splash
The Shape of the Internet
Dinosaurs and Fossils
Early Birds Ready to Rumble
Hall of Dinos
Winged Insects May Go Way Back
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
Watering the Air
Killer Space Rock Snuffed Out Ancient Life
Greener Diet
A 'Book' on Every Living Thing
Plastic Meals for Seals
Missing Tigers in India
Finding the Past
Stone Age Sole Survivors
Chicken of the Sea
Early Maya Writing
Electric Eel
Cleaning Up Fish Farms
Food and Nutrition
Chew for Health
Packing Fat
Chocolate Rules
GSAT English Rules
Who vs. That vs. Which
Problems with Prepositions
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Scholarship
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Math of the World
Losing with Heads or Tails
How to Slice a Cake Fairly
Human Body
Heart Revival
Taste Messenger
Smiles Turn Away Colds
Prairie Dogs
Kodiak Bear
Children and Media
What Not to Say to Emerging Readers
The Surprising Meaning and Benefits of Nursery Rhymes
Gaining a Swift Lift
Extra Strings for New Sounds
The Pressure of Scuba Diving
Flower family knows its roots
Bright Blooms That Glow
Getting the dirt on carbon
Boa Constrictors
Gila Monsters
Black Mamba
Space and Astronomy
Planning for Mars
A Great Ball of Fire
A Whole Lot of Nothing
Technology and Engineering
Model Plane Flies the Atlantic
Spinach Power for Solar Cells
Space Umbrellas to Shield Earth
The Parts of Speech
What is a Noun
What is a Preposition?
Are Propellers Fin-ished?
Morphing a Wing to Save Fuel
Revving Up Green Machines
Where rivers run uphill
Recipe for a Hurricane
Catching Some Rays
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™