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Girls are cool for school
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2014 GSAT Results for Jamaican Kids
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Results of GSAT are in schools this week
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Surf Watch
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On the Trail of America's Next Top Scientists
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When Fungi and Algae Marry
Finding the Past
Stone Tablet May Solve Maya Mystery
Early Maya Writing
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A Jellyfish's Blurry View
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How Super Are Superfruits?
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GSAT stars reap scholarship glory
Results of GSAT are in schools this week
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Math of the World
How a Venus Flytrap Snaps Shut
Losing with Heads or Tails
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Sleeping Soundly for a Longer Life
Workouts: Does Stretching Help?
Taking the sting out of scorpion venom
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Praying Mantis
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Expert report highlights the importance to parents of reading to children!
What Not to Say to Emerging Readers
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Black Hole Journey
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Project Music
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Tracking the Sun Improves Plant Pollen
City Trees Beat Country Trees
A Giant Flower's New Family
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Black Mamba
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Rover Makes Splash on Mars
Melting Snow on Mars
The two faces of Mars
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Supersuits for Superheroes
A Light Delay
Roll-Up Computer Monitors to Go
The Parts of Speech
What is a Verb?
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What is a Noun
Transportation
Robots on a Rocky Road
Where rivers run uphill
How to Fly Like a Bat
Weather
In Antarctica watch the heat (and your step)
The Best Defense Is a Good Snow Fence
Arctic Melt
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Black Holes That Burp

It wouldn’t be very pleasant to go near a black hole. Armed with an enormous amount of gravitational pull, the incredibly tiny but supermassive object would swallow you alive and stretch you into a piece of spaghetti in the process. Black holes are black because they engulf everything in sight, including light. Now, scientists say, it looks like some black holes actually spit out as much material as they suck in. Black-hole burps may even fill outer space with many of the building blocks of life. The new observations come with the help of NASA’s Chandra X-ray Observatory and the European Space Agency’s XMM-Newton satellite. George Chartas of Pennsylvania State University and his colleagues used the spacecraft to look at two quasars—extremely bright and distant beams of high-energy light powered by rotating black holes. By looking at magnified light from the two quasars, Chartas and his team were able to detect for the first time high-energy winds coming out of black holes. The winds travel at 20 to 40 percent of the speed of light (which is still really, really fast). And they spit out billions of suns worth of gas, including oxygen, carbon, and iron—important elements necessary for life. So, even though black holes make up only a tiny percentage of a galaxy’s mass, they may play an important role in galaxy evolution. Still, with all the sucking, spitting, and burping they do, it probably wouldn’t be a good idea to try to look inside a black hole, even if you could get close enough!—E. Sohn

Black Holes That Burp
Black Holes That Burp








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