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Plants feed us. Without them we’re goners. Through thousands of years of genetic modification by selective breeding, humans have developed the crops that keep us alive. We have large kernels of grains,...

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Most likely, this is the best-known picture of a flag ever taken: Buzz Aldrin standing next to the first U.S. flag planted on the Moon. For those who knew their world history, it also rang some alarm...

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Possibly the most significant event in the evolution of life on Earth occurred 2.4 billion years ago. That was when the amount of oxygen in the atmosphere and ocean surface waters rapidly increased –...

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When disaster or tragedy strikes, people far away are touched and want to help – but really can’t do much. Often the first thing distant observers do is take to social media to send their thoughts,...

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One snowy January day, I asked a classroom of college students to tell me the first word that came to mind when they thought about mathematics. The top two words were “calculation” and “equation.”...

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The U.S. is in multiple international trade wars. After President Trump ordered higher taxes on some Chinese imports, the Chinese retaliated. The trade dispute now involves as much as US$200 billion worth...

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Novichok, or “newcomer” in Russian, refers not to a single chemical but rather a group of related molecules designed for only one purpose: to kill. Soviet Scientists applied that nickname to extremely...

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Love them or hate them, wolves are vital members of natural ecosystems and the health of a wolf population can be an important factor in maintaining balance among species. Wolf populations are growing...

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About four billion years ago, when the planet Earth was still in its infancy, the axis of a black hole about one billion times more massive than the sun happened to be pointing right to where our planet...

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Sea turtles’ reality is very different than the fun-loving, playful way they’re depicted in popular movies such as “Finding Nemo.” Far from being carefree, sea turtles across the globe are heavily...