Agriculture
Growing Healthier Tomato Plants
Vitamin D-licious Mushrooms
Protecting Cows—and People—from a Deadly Disease
Amphibians
Poison Dart Frogs
Toads
Salamanders and Newts
Animals
A Meal Plan for Birds
Armadillo
Color-Changing Bugs
Behavior
The (kids') eyes have it
The Science Fair Circuit
Puberty gone wild
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Carnivorous Birds
Finches
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Chemistry and Materials
Smelly Traps for Lampreys
Heaviest named element is official
Meteorites may have sparked life on Earth
Computers
Supersonic Splash
New eyes to scan the skies
Games with a Purpose
Dinosaurs and Fossils
Digging for Ancient DNA
Digging Dinos
Fossil Fly from Antarctica
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2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Easy Ways to Conserve Water
Earth from the inside out
The Pacific Ocean's Bald Spot
Environment
The Down Side of Keeping Clean
Catching Some Rays
Seabirds Deliver Arctic Pollutants
Finding the Past
Oldest Writing in the New World
Childhood's Long History
Stone Age Sole Survivors
Fish
Skates and Rays
Flashlight Fishes
Mahi-Mahi
Food and Nutrition
A Taste for Cheese
Food for Life
Recipe for Health
GSAT English Rules
Who vs. That vs. Which
Whoever vs. Whomever
Problems with Prepositions
GSAT Exam Preparation Jamaica
Results of GSAT are in schools this week
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Practice Papers | GSAT Mathematics | Maths
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2014 GSAT Results for Jamaican Kids
42,000 students will sit for the GSAT Exam in two weeks
GSAT stars reap scholarship glory
GSAT Mathematics
How a Venus Flytrap Snaps Shut
Math of the World
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
Gut Microbes and Weight
Music in the Brain
Smiles Turn Away Colds
Invertebrates
Giant Clam
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Lice
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African Wildedbeest
Horses
Rhinoceros
Parents
What Not to Say to Emerging Readers
Choosing a Preschool: What to Consider
Expert report highlights the importance to parents of reading to children!
Physics
The Mirror Universe of Antimatter
The Particle Zoo
One ring around them all
Plants
Farms sprout in cities
Assembling the Tree of Life
Surprise Visitor
Reptiles
Crocodilians
Chameleons
Geckos
Space and Astronomy
No Fat Stars
Sun Flips Out to Flip-Flop
Supernovas Shed Light on Dark Energy
Technology and Engineering
Musclebots Take Some Steps
Weaving with Light
Space Umbrellas to Shield Earth
The Parts of Speech
Pronouns
What is a Noun
Problems with Prepositions
Transportation
Seen on the Science Fair Scene
Revving Up Green Machines
Reach for the Sky
Weather
Arctic Melt
Polar Ice Feels the Heat
Catching Some Rays
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Cousin Earth

As their search continues, astronomers are finding more and more planets orbiting nearby stars. This time, they've detected a solid planet that's just 15 light-years from Earth. Many details about the planet remain unknown because the astronomers didn't see it directly. Instead, they were able to detect how the planet's gravity makes its star wobble a little bit. Out of 156 planets discovered so far in other solar systems, the new extrasolar planet is the smallest one yet found. It's about 7.5 times heavier than Earth. Along with two, much bigger planets, the new world orbits a star called Gliese 876. The planet takes just 1.9 days to complete an orbit around Gliese 876. So, its year is much, much shorter than ours. It's so close to its star that its surface is hot enough to roast a chicken. Most extrasolar planets that have been found so far are big balls of gas, like Jupiter and Saturn. Because the planet's mass is low, it probably couldn't hold onto much gas. So, scientists suspect that it's rocky. "This could be the first [known] rocky planet around any normal star other than the sun," says team member Jack Lissauer of NASA's Ames Research Center in Mountain View, Calif. Scientists are still trying to figure out how rocky planets might form so close to their stars. Whatever the answer, the new discovery gives researchers confidence that they will one day find even closer cousins to Earth somewhere in the universe. And, on a planet resembling Earth, they might also discover traces of life as we know it.—E. Sohn

Cousin Earth
Cousin Earth








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