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Salamanders and Newts
Pothole Repair, Insect-style
Odor-Chasing Penguins
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Hitting the redo button on evolution
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Blue Jays
Chemistry and Materials
Putting the Squeeze on Toothpaste
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Troubles with Hubble
The solar system's biggest junkyard
Galaxies on the go
Dinosaurs and Fossils
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Dino Flesh from Fossil Bone
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Missing Tigers in India
Sounds and Silence
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Of Lice and Old Clothes
Big Woman of the Distant Past
Skates and Rays
Food and Nutrition
Eat Out, Eat Smart
Food for Life
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GSAT English Rules
Finding Subjects and Verbs
Who vs. That vs. Which
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GSAT Exam Preparation Jamaica
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Human Body
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Cell Phones and Possible Health Hazards
Sleeping Soundly for a Longer Life
Hermit Crabs
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The Mirror Universe of Antimatter
Black Hole Journey
A Giant Flower's New Family
When Fungi and Algae Marry
Stalking Plants by Scent
Komodo Dragons
Black Mamba
Space and Astronomy
Sounds of Titan
Planning for Mars
Planet Hunters Nab Three More
Technology and Engineering
Smart Windows
Searching for Alien Life
Roll-Up Computer Monitors to Go
The Parts of Speech
What is a Noun
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Middle school science adventures
Reach for the Sky
Robots on the Road, Again
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A Dire Shortage of Water
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World of Three Suns

Astronomers have discovered a planet in the Milky Way galaxy that has three suns. It's weird enough trying to imagine three suns in the sky at once. Scientists are having a hard time explaining how such a planet could exist in the first place. Astronomers from the California Institute of Technology in Pasadena recently spotted the planet, which is similar in size and composition to Jupiter. The new object orbits one star that lies close to two other stars. Together, the sun trio is called HD 188753. There are lots of star groups in the galaxy, but scientists have long thought it impossible for planets to form near groups in which stars are bunched very close together. Huge planets, such as Jupiter (which is about 300 times heavier than Earth), normally form out of swirling disks of gas, dust, and ice. However, the heat and strong gravity of three nearby suns would probably prevent such a process from occurring. The Caltech researchers initially hypothesized that the newly discovered planet formed as much as three times farther away from its sun as Earth is from our sun. This theory runs into problems, however. The stars in HD 188753 lie so close together (about as far apart as Saturn and our sun) that their gravity wouldn't allow room for the planet. Now, scientists are looking for other ways to explain this odd phenomenon. As they do, astronomers are getting ready for a new search. There might be many more planets out there near pairs, trios, or even larger star systems long thought to be without planets.E. Sohn

World of Three Suns
World of Three Suns

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