Agriculture
Keeping Bugs Away from Food
Earth-Friendly Fabrics
Flush-Free Fertilizer
Amphibians
Salamanders
Bullfrogs
Salamanders and Newts
Animals
Sleep Affects a Bird's Singing
From Chimps to People
Saving Africa's Wild Dogs
Behavior
Copycat Monkeys
A brain-boosting video game
Calculating crime
Birds
Condors
Ospreys
Parakeets
Chemistry and Materials
The hottest soup in New York
Unscrambling a Gem of a Mystery
Hair Detectives
Computers
Earth from the inside out
It's a Small E-mail World After All
Troubles with Hubble
Dinosaurs and Fossils
Mini T. rex
Dino Takeout for Mammals
Tiny Pterodactyl
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
Plastic-munching microbes
A Dire Shortage of Water
Island of Hope
Environment
The Wolf and the Cow
The Birds are Falling
When Fungi and Algae Marry
Finding the Past
Stone Tablet May Solve Maya Mystery
Stone Age Sole Survivors
Stonehenge Settlement
Fish
Saltwater Fish
Sting Ray
Electric Catfish
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
A Taste for Cheese
Healing Honey
GSAT English Rules
Finding Subjects and Verbs
Subject and Verb Agreement
Problems with Prepositions
GSAT Exam Preparation Jamaica
Mastering The GSAT Exam
Results of GSAT are in schools this week
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
2014 GSAT Results for Jamaican Kids
GSAT stars reap scholarship glory
GSAT Mathematics
Setting a Prime Number Record
How a Venus Flytrap Snaps Shut
Math and our number sense: PassGSAT.com
Human Body
Disease Detectives
A Fix for Injured Knees
Gut Microbes and Weight
Invertebrates
Insects
Bees
Nautiluses
Mammals
Felines
Prairie Dogs
Shih Tzus
Parents
How children learn
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Echoes of a Stretched Egg
Powering Ball Lightning
Road Bumps
Plants
Plants Travel Wind Highways
Getting the dirt on carbon
Fungus Hunt
Reptiles
Snakes
Cobras
Black Mamba
Space and Astronomy
Phantom Energy and the Big Rip
Tossing Out a Black Hole Life Preserver
Super Star Cluster in the Neighborhood
Technology and Engineering
Machine Copy
Musclebots Take Some Steps
Weaving with Light
The Parts of Speech
Problems with Prepositions
What is a Preposition?
What is a Noun
Transportation
Where rivers run uphill
Flying the Hyper Skies
Morphing a Wing to Save Fuel
Weather
The Best Defense Is a Good Snow Fence
Recipe for a Hurricane
Science loses out when ice caps melt
Add your Article

Cool as a Jupiter

Astronomers have found more than 400 planets outside the solar system. These distant worlds are full of surprises: Some are giant and made of gas, like Jupiter, and others seem to be rocky, like big versions of Earth. All these faraway orbs are called exoplanets — short for “extrasolar” planets because they’re outside our solar system — and astronomers find more all the time. Scientists recently found an exoplanet that’s really cool — literally. Most exoplanets are much hotter even than the gas giants in our solar system (Jupiter, Saturn, Uranus and Neptune). But the newly discovered planet, called COROT-9b, is different. Its temperatures don’t soar as high, and as a result it’s probably more like Jupiter and Saturn than other known exoplanets are. (The planet was first spotted by the COROT telescope, which is why “COROT” is in its name.) On COROT-9b, the low temperatures on the surface are around -23º Celsius (-9.4º degrees Fahrenheit) and the highs reach 157 º C (314 º F). COROT-9b is 1,500 light years away. (A light year is the distance light can travel in one year, or about 5.9 trillion miles.) Other planets have been found with lower temperatures, but COROT-9b is special for another reason. It “transits” its star, which means it passes directly between its star and the Earth. Astronomers can learn more about a distant planet that transits than they can about a planet that doesn’t transit. So when a transiting planet shows up, the scientists get excited. Hans Deeg, who worked on the new study of COROT-9b, says this is the first time a cooler planet has been found to transit. Deeg works at the Instituto de Astrofísica de Canarias in Tenerife, Spain. Most transiting planets are “weird — inflated and hot,” Didier Queloz, another scientist who worked on the study, told Science News. Queloz works at the Geneva Observatory in Sauverny, Switzerland. As a planet passes in front of its star, it blocks out some light. (This is sort of like a solar eclipse, when the moon passes between the Earth and the Sun.) When astronomers measure the blocked light, they can quickly calculate the size of the planet. They can also learn about the atmosphere of a transiting planet. The light that comes from the star is made of waves — in fact, it’s made of many waves of different wavelengths. Each different wavelength is a different color, even though all together the waves look white. As this light passes through the atmosphere of the exoplanet, different kinds of atoms absorb different wavelengths of light. Eventually that light reaches Earth. By measuring which wavelengths are “missing,” astronomers can figure out which atoms in the atmosphere absorbed the light. Even though COROT-9b is cooler than many other exoplanets, it’s probably not habitable. That means it’s too early to pack your bags because people can’t live there. But, as Sara Seager, an exoplanet expert at MIT, told Science News, if this planet has a rocky moon, there may be hope of finding a new planet to call home. And even if things don’t work out with COROT-9b, there are other worlds to consider, worlds much closer to home. The study of exoplanets is just getting started: hundreds may have been found, but scientists think there are millions of new worlds in our galaxy, just waiting to be discovered. Time to start planet hunting!

Cool as a Jupiter
Cool as a Jupiter








Designed and Powered by HBJamaica.com™