Agriculture
Chicken Eggs as Drug Factories
Springing forward
Seeds of the Future
Amphibians
Salamanders and Newts
Poison Dart Frogs
Newts
Animals
Bee Disease
Fishing for Giant Squid
Ants on Stilts
Behavior
Reading Body Language
Homework blues
Babies Prove Sound Learners
Birds
Seagulls
Turkeys
Rheas
Chemistry and Materials
A Spider's Silky Strength
Makeup Science
The memory of a material
Computers
Music of the Future
The hungry blob at the edge of the universe
Getting in Touch with Touch
Dinosaurs and Fossils
Mini T. rex
Some Dinos Dined on Grass
A Dino King's Ancestor
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Warmest Year on Record
Ice Age Melting and Rising Seas
What is groundwater
Environment
Watching for Wildfires in Yellowstone
Will Climate Change Depose Monarchs?
Food Web Woes
Finding the Past
A Long Haul
Salt and Early Civilization
Your inner Neandertal
Fish
Swordfish
Tilapia
Electric Catfish
Food and Nutrition
In Search of the Perfect French Fry
Yummy bugs
Making good, brown fat
GSAT English Rules
Subject and Verb Agreement
Who vs. Whom
Capitalization Rules
GSAT Exam Preparation Jamaica
Results of GSAT are in schools this week
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT stars reap scholarship glory
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Play for Science
Math and our number sense: PassGSAT.com
42,000 students will sit for the GSAT Exam in two weeks
Human Body
Spit Power
Tapeworms and Drug Delivery
Germ Zapper
Invertebrates
Snails
Giant Squid
Spiders
Mammals
Narwhals
Bats
Dingoes
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Expert report highlights the importance to parents of reading to children!
Physics
Strange Universe: The Stuff of Darkness
Einstein's Skateboard
Invisibility Ring
Plants
Stalking Plants by Scent
Seeds of the Future
Farms sprout in cities
Reptiles
Lizards
Asp
Iguanas
Space and Astronomy
A Galaxy Far, Far, Far Away
Galaxies Divide Sharply Along Color Lines
A Whole Lot of Nothing
Technology and Engineering
Drawing Energy out of Wastewater
Switchable Lenses Improve Vision
Sugar Power for Cell Phones
The Parts of Speech
Pronouns
What is a Preposition?
What is a Verb?
Transportation
How to Fly Like a Bat
Ready, unplug, drive
Robots on a Rocky Road
Weather
Where rivers run uphill
Either Martians or Mars has gas
Arctic Melt
Add your Article

The hungry blob at the edge of the universe

Using a telescope atop a Hawaiian mountain, astronomers recently caught sight of an enormous, newfound glowing object in deep, deep space. If you were an astronomer, what would you call such a thing? How about a “blob”? Technically, the object is called a Lyman-alpha blob, and scientists aren’t exactly sure what it is. But they have a guess. Astronomer Masami Ouchi, of the Observatories of the Carnegie Institution for Science in Pasadena, Calif led the team that identified the blob. He and his colleagues think it may be a distant galaxy — a collection of stars, gas and dust — caught in the act of a feeding frenzy. Astronomers have different theories to explain how blobs like Ouchi’s came into being. Some suggest that Lyman-alpha blobs are smaller galaxies merging together into one larger galaxy. Other theories suggest cold gas streaming into the galaxy is essentially “feeding” it. Still other astronomers suspect that the glowing blob is a cloud of gas heated by a nearby supermassive black hole. The galaxy is 12.9 billion light-years from Earth. Light travels at about 186,000 miles per second, so one light-year is the equivalent of about 5.9 trillion miles. The giant blob is very, very far away, about 76.1 billion trillion miles away, in case you’re counting. In fact, it’s so far away that it’s the fourth most distant object ever observed. When we see light from a distant object in the sky — say, a star — we’re not seeing the object as it is. We’re seeing the object as it was when it emitted the light we’re seeing now. For example, light takes about eight minutes to travel from the sun to Earth, so when you see the sun, you actually see it as it was eight minutes ago. In other words, to look into space is to look back in time. Because the newly discovered blob is 12.9 billion light-years away, it is at least 12.9 billion years old. The universe itself is believed to be about 13 or 14 billion years old, so this blob came into being not long after. The blob is about 55,000 light-years across, or about half the diameter of our own galaxy, the Milky Way. To observe the blob, Ouchi and his team used a special telescope that is able to see infrared light coming from space. Infrared light is made of waves with wavelengths that we cannot see with the naked eye. We can feel these waves, though: “Far” infrared radiation feels like heat. According to Ouchi’s infrared measurements, the number of stars in the blob is equivalent to 40 billion suns. And that number is likely to keep growing since the scientists think the blob is a young galaxy in a growth

The hungry blob at the edge of the universe
The hungry blob at the edge of the universe








Designed and Powered by HBJamaica.com™