Agriculture
Flush-Free Fertilizer
Seeds of the Future
Where Have All the Bees Gone?
Amphibians
Poison Dart Frogs
Salamanders and Newts
Newts
Animals
Who's Knocking?
New Monkey Business
Vent Worms Like It Hot
Behavior
When Darwin got sick of feathers
Girls are cool for school
Pondering the puzzling platypus
Birds
Crows
Songbirds
Birds We Eat
Chemistry and Materials
Bang, Sparkle, Burst, and Boom
Putting the Squeeze on Toothpaste
Picture the Smell
Computers
The solar system's biggest junkyard
Troubles with Hubble
Hitting the redo button on evolution
Dinosaurs and Fossils
Dinosaur Eggs-citement
An Ancient Feathered Biplane
Meet your mysterious relative
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Slower Growth, Greater Warmth
Rodent Rubbish as an Ice-Age Thermometer
Less Mixing Can Affect Lake's Ecosystem
Environment
Pollution Detective
Giant snakes invading North America
Sounds and Silence
Finding the Past
Big Woman of the Distant Past
Digging Up Stone Age Art
A Long Trek to Asia
Fish
Halibut
Tiger Sharks
Seahorses
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
Eat Out, Eat Smart
Making good, brown fat
GSAT English Rules
Who vs. That vs. Which
Capitalization Rules
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Preparing for the GSAT Exam
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT Exam Preparation
GSAT Mathematics
GSAT Practice Papers | GSAT Mathematics | Maths
How a Venus Flytrap Snaps Shut
Math and our number sense: PassGSAT.com
Human Body
Walking to Exercise the Brain
Spitting Up Blobs to Get Around
Germ Zapper
Invertebrates
Sea Urchin
Wasps
Scallops
Mammals
Caribou
African Leopards
Yaks
Parents
Expert report highlights the importance to parents of reading to children!
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Physics
The Mirror Universe of Antimatter
Strange Universe: The Stuff of Darkness
Extra Strings for New Sounds
Plants
When Fungi and Algae Marry
Farms sprout in cities
White fuzzy mold not as friendly as it looks
Reptiles
Anacondas
Copperhead Snakes
Tortoises
Space and Astronomy
Melting Snow on Mars
A Puffy Planetary Puzzle
An Earthlike Planet
Technology and Engineering
Musclebots Take Some Steps
Young Scientists Take Flight
Beyond Bar Codes
The Parts of Speech
What is a Verb?
Countable and Uncountable Nouns
What is a Preposition?
Transportation
Charged cars that would charge
Tinkering With the Basic Bike
Middle school science adventures
Weather
A Dire Shortage of Water
Science loses out when ice caps melt
A Change in Climate
Add your Article

The Earth-bound asteroid scientists saw coming

On October 7, 2008, an asteroid the size of a car blazed through the atmosphere and crashed into the Nubian Desert in the African nation of Sudan. Eyewitnesses who were looking up at the sky at the time reported seeing a fireball over the desert when the asteroid, named 2008 TC3, exploded into pieces. Some people weren’t surprised by all the fireworks though. For the first time in history, scientists were able to watch the asteroid as it flew through space, then entered Earth’s atmosphere and crashed into the desert. 2008 TC3 is the first asteroid to be observed both in space and on Earth. Before this asteroid’s arrival, scientists have had to rely on data from one place or the other. Asteroids the size of 2008 TC3 are not uncommon, and fragments from one usually strike Earth every year. Because they are so small, Earth-bound asteroids usually remain unseen until they enter our atmosphere. Larger asteroids are easier to see, but are more rare. “It’s like when bugs splatter on the windshield. You don’t see the bug until it’s too late,” says Mark Boslough, a physicist at Sandia National Laboratories in Albuquerque, N.M., who has studied the asteroid’s collision. “You’d see a baseball coming towards the windshield much sooner.” In the case of 2008 TC3, the astronomers who first observed it got lucky. They didn’t know they were going to see it. “It just so happened that the asteroid was coming from the direction that the telescope was pointed in,” says astronomer Peter Jenniskens of the SETI Institute in Mountain View, Calif. The astronomers first saw the asteroid on October 6, through a telescope on a mountain near Tucson, Ariz. As they watched 2008 TC3 move across the sky, the scientists studied its mineral composition by observing how the asteroid reflected sunlight. They also used tracking equipment to correctly predict when the asteroid would impact Earth. Shortly after the collision, Jenniskens and a team of astronomers and students from Sudan headed out into the desert to look for meteorites, pieces of the asteroid that survived the fiery trip through the atmosphere and landed on Earth. The team brought back about 47 meteorites from 2008 TC3. Once they were able to study the fragments in the laboratory, the scientists quickly realized that the 2008 TC3 meteorites were unlike anything they had seen or studied before. More research on the pieces gave the scientists new information about the characteristics of different kinds of meteorites. In addition to helping scientists understand more about asteroids, 2008 TC3 may prove to be helpful to humankind in the future. If a larger and more dangerous asteroid ever comes crashing toward Earth, scientists might see it coming. Power words: (Adapted from the Yahoo! Kids Dictionary) Meteorite: A stony or metallic mass of matter that has fallen to Earth's surface from outer space. Asteroid: Any of numerous small celestial bodies that revolve around the sun. Telescope: Any of various devices used to detect and observe distant objects. Atmosphere: The gaseous mass surrounding a celestial body and retained by the celestial body's gravitational field.

The Earth-bound asteroid scientists saw coming
The Earth-bound asteroid scientists saw coming








Designed and Powered by HBJamaica.com™