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Got Milk? How?
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How to Fly Like a Bat
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Why Cats Nap and Whales Snooze
From dipping to fishing
World’s largest lizard is venomous too
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Supersonic Splash
A Diamond Polish for Ancient Tools
Music of the Future
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Seen on the Science Fair Scene
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A Light Delay
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South America's sticky tar pits
An Ancient Spider's Web
Three strikes wiped out woolly mammoths
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2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Bugs with Gas
What is groundwater
Easy Ways to Conserve Water
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Forests as a Tsunami Shield
A Change in Time
The Oily Gulf
Finding the Past
The Puzzle of Ancient Mariners
Ancient Art on the Rocks
Writing on eggshells
Fish
Cleaning Up Fish Farms
Swordfish
Perches
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Sponges' secret weapon
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Strong Bones for Life
GSAT English Rules
Whoever vs. Whomever
Subject and Verb Agreement
Who vs. That vs. Which
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Human Body
Workouts: Does Stretching Help?
Tapeworms and Drug Delivery
A New Touch
Invertebrates
Giant Clam
Tarantula
Scorpions
Mammals
African Warthogs
African Wildedbeest
Wildcats
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How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
Choosing a Preschool: What to Consider
Physics
Project Music
Powering Ball Lightning
Invisibility Ring
Plants
Getting the dirt on carbon
Making the most of a meal
Hungry bug seeks hot meal
Reptiles
Crocodilians
Caimans
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Space and Astronomy
Super Star Cluster in the Neighborhood
A Whole Lot of Nothing
Unveiling Titan
Technology and Engineering
Shape Shifting
Are Propellers Fin-ished?
Roll-Up Computer Monitors to Go
The Parts of Speech
What is a Noun
Problems with Prepositions
What is a Preposition?
Transportation
Tinkering With the Basic Bike
Ready, unplug, drive
Reach for the Sky
Weather
Polar Ice Feels the Heat
Weekend Weather Really Is Different
A Change in Climate
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Big Galaxy Swallows Little Galaxy

It's hard to imagine being so hungry that you'd eat another person. Yet, cannibalism occurs among animals and elsewhere in nature. Even galaxies do it. Now, scientists have captured one of the best images yet of a distant galaxy in the act of swallowing a smaller neighbor. The discovery supports the theory that galaxies grow by consuming each other. Astronomers have long suspected that it's a galaxy-eat-galaxy world out there. Many massive galaxies, including our own Milky Way, are surrounded by stellar debris that looks like undigested remnants of smaller star systems. The most direct evidence yet for that idea comes from an image taken in April 2002 by a new camera on the Hubble Space Telescope. Australian astronomer Michael Beasley noticed a faint galaxy in the background of the image. Nearby, two star plumes seemed to be coming out of some kind of small blob. Further analyses and computer simulations revealed that a big galaxy, about the size of the Milky Way, was sucking material, visible as plumes, from a smaller galaxy. The objects are about 2 billion light-years from Earth. Astronomers think that galaxy cannibalism is common. It's just hard to see. Luckily, our own galaxy doesn't seem to be at risk of getting slurped up. Sometimes, it's nice to be the biggest kid on the block—at least until we slam into Andromeda, the nearest, large spiral galaxy in our own neighborhood. Then, it'll be like two big, evenly matched kids battling it out on the schoolyard.—E. Sohn

Big Galaxy Swallows Little Galaxy
Big Galaxy Swallows Little Galaxy








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