Bonding through butterflies and other top stories.

• Bonding through butterflies

  

  For the last two years, Batesville Primary School second-graders have used two great online programs to heighten their fascination with a certain butterfly, reports teacher Vickie Heil."These programs allow the students to learn about monarchs, understand the problems facing monarchs and how to help monarchs. They also allow the students to work together with schools in Mexico," allowing a global connection.Now they are taking part in the 21st annual Symbolic Monarch Butterfly Migration (Journe..

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• A forming solar system with spiral arms

  

  In 1920, two famous astronomers held what’s come to be called The Great Debate. At that time, spiral galaxies were called spiral nebulae, and no one knew if they were relatively near us or exceedingly far away. During the 1920 debate, Heber D. Curtis argued that the spiral nebulae were very distant, vast galaxies like our Milky Way, composed of stars. Harlow Shapley argued that our universe had just one galaxy – our Milky Way – and that the spiral nebulae were nearby gas clouds, perhaps formin..

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• India ratifies Paris climate agreement

  

  NEW DELHI, Oct. 2 (UPI) -- India -- the third-largest emitter of greenhouse gases in the world -- ratified the landmark Paris climate agreement Sunday. Prime Minister Narendra Modi signed the pact on the birthday of Mahatma Gandhi, the leader of the country's independence from Britain. With India's signature, 62 countries have signed the pact. It will come into force legally after it is ratified by at least 55 countries between those that produce at least 55 percent of global carbon emissions. ..

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• How Soon Could Elon Musk Send People to Mars?

  

  This article was originally published on The Conversation. Read the original article.Mars is the future. It’s after all NASA’s current overarching goal to send humans to the Red Planet. But even as early as the 1950s, aerospace engineer Wernher von Braun, had published his vision of a mission to Mars in his book The Mars Project. We’ve also heard visions of settling the Red Planet under the leadership of a private organisation before. So why does Elon Musk get so much attention? And how feasible..

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• Humans did inherit violence, but civilization made us less murderous

  

  If you think of all those news reports on violent killings, you’d probably think humans are the most murderous species around. And while humans are indeed quite violent, as inherited from our ancestors, we were much more so hundreds of years ago, and have civilization to thank for our mellowing down. Researchers analyzed more than a thousand species of mammals and calculated the rate in which they kill their own kind, and observed that the most violent species tended to be related to each oth..

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• New Source Of Greenhouse Gas: How Do Water Reservoirs Accelerate Global Warming?

  

  Electricity generated by dams and reservoirs may not be so "clean" after all, a new report suggests. For decades, scientists have considered hydropower as a cheap but clean source of energy, renewable yearly by rainfall and snow. It is also an alternative to coal, nuclear and gas power plants. However, hydropower isn't all it's cracked up to be: researchers in Washington have discovered that hydroelectricity is actually an "underappreciated source" of greenhouse gases. Global Carbon Emission In..

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• Rare Tree Frog Species Likely Extinct After Last Known Living Member Dies At Atlanta Botanical Garden

  

  The last known living member of the Rabbs' fringe-limbed tree frog died at the Atlanta Botanical Garden. Scientists warned that up to half of all the world's amphibians are also at risk of extinction. ( Atlanta Botanical Garden | Facebook ). Advertisement.

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• Nobel Prize in medicine awarded to Japan's Yoshinori Ohsumi for work on 'cell recycling'

  

  Japanese scientist Yoshinori Ohsumi was awarded this year's Nobel Prize in medicine on Monday, Oct. 3, for discoveries related to the degrading and recycling of cellular components. (Akiko Matsushita/Kyodo News via AP) Japanese biologist Yoshinori Ohsumi was awarded the 2016 Nobel Prize in Medicine on Monday for discovering and elucidating a key mechanism in our body's defense system that involves degrading and recycling parts of cells. Known as autophagy, this process plays an important ro..

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