Protecting Cows—and People—from a Deadly Disease
Flush-Free Fertilizer
Hungry bug seeks hot meal
Tree Frogs
Moss Echoes of Hunting
Odor-Chasing Penguins
Roboroach and Company
Chimpanzee Hunting Tools
The Snappy Lingo of Instant Messages
Calculating crime
Chemistry and Materials
Flytrap Machine
Music of the Future
Meteorites may have sparked life on Earth
Galaxies on the go
The Earth-bound asteroid scientists saw coming
Music of the Future
Dinosaurs and Fossils
Digging Dinos
Dinosaur Dig
A Living Fossil
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
Farms sprout in cities
A Global Warming Flap
In Antarctica watch the heat (and your step)
Spotty Survival
Bald Eagles Forever
An Ocean View's Downside
Finding the Past
A Volcano's Deadly Ash
Sahara Cemetery
Chicken of the Sea
Electric Eel
A Jellyfish's Blurry View
Food and Nutrition
Eat Out, Eat Smart
Chocolate Rules
Recipe for Health
GSAT English Rules
Capitalization Rules
Whoever vs. Whomever
Problems with Prepositions
GSAT Exam Preparation Jamaica
42,000 students will sit for the GSAT Exam in two weeks
Results of GSAT are in schools this week
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
GSAT Scholarship
GSAT Mathematics
Play for Science
Monkeys Count
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Human Body
Sun Screen
Prime Time for Broken Bones
Germ Zapper
Yorkshire Terriers
Flying Foxes
African Gorillas
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Gaining a Swift Lift
Thinner Air, Less Splatter
The Pressure of Scuba Diving
Underwater Jungles
Stalking Plants by Scent
Pumping Up Poison Ivy
Boa Constrictors
Space and Astronomy
Evidence of a Wet Mars
A Family in Space
Solving a Sedna Mystery
Technology and Engineering
Morphing a Wing to Save Fuel
Sugar Power for Cell Phones
Slip Sliming Away
The Parts of Speech
Adjectives and Adverbs
Problems with Prepositions
What is a Verb?
How to Fly Like a Bat
Robots on the Road, Again
Ready, unplug, drive
Either Martians or Mars has gas
Recipe for a Hurricane
The Best Defense Is a Good Snow Fence
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™