Agriculture
Getting the dirt on carbon
Watering the Air
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Amphibians
Frogs and Toads
Bullfrogs
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Animals
A Spider's Taste for Blood
Awake at Night
Ant Invasions Change the Rules
Behavior
Body clocks
A brain-boosting video game
The Science Fair Circuit
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Owls
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The chemistry of sleeplessness
Hair Detectives
The memory of a material
Computers
Electronic Paper Turns a Page
A Light Delay
Batteries built by Viruses
Dinosaurs and Fossils
The bug that may have killed a dinosaur
Have shell, will travel
Three strikes wiped out woolly mammoths
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Earth
Unnatural Disasters
Greener Diet
Rocking the House
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A Vulture's Hidden Enemy
Groundwater and the Water Cycle
To Catch a Dragonfly
Finding the Past
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An Ancient Childhood
Oldest Writing in the New World
Fish
Hammerhead Sharks
Seahorses
Mahi-Mahi
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Food for Life
How Super Are Superfruits?
The mercury in that tuna
GSAT English Rules
Problems with Prepositions
Subject and Verb Agreement
Pronouns
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Tarrant High overcoming the odds
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2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
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Setting a Prime Number Record
Human Body
Teen Brains, Under Construction
A New Touch
Football Scrapes and Nasty Infections
Invertebrates
Termites
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Snails
Mammals
Opposum
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Yorkshire Terriers
Parents
Raise a Lifelong Reader by Reading Aloud
Choosing a Preschool: What to Consider
Expert report highlights the importance to parents of reading to children!
Physics
Hold on to your stars, ladies and gentlemen
Project Music
The Particle Zoo
Plants
A Giant Flower's New Family
Farms sprout in cities
Surprise Visitor
Reptiles
Asp
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Gila Monsters
Space and Astronomy
The two faces of Mars
World of Three Suns
A Great Ball of Fire
Technology and Engineering
Reach for the Sky
Weaving with Light
Space Umbrellas to Shield Earth
The Parts of Speech
What is a Preposition?
Problems with Prepositions
What is a Noun
Transportation
Flying the Hyper Skies
How to Fly Like a Bat
Charged cars that would charge
Weather
Either Martians or Mars has gas
Science loses out when ice caps melt
Watering the Air
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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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