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" Progress in science occurs in fits and starts, and paradigm shifts occur when evidence can be marshaled to support a new point of view. "

Priyamvada Natarajan

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" Mental discipline and tenacity in the face of obstacles are traits that have greatly helped me in both my personal and professional journey thus far. I am also very optimistic by nature and tend to focus on the positive and remain hopeful when faced with adversity. "

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" Individuals reporting on their own experience with particular therapies would provide first-hand accounts that could be considered in the improvement of drug design. "

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" The early universe was a dusty place, and the UV radiation from the hot, young black holes and stars would get enshrouded by dust, re-radiated, and scattered into red wavelengths like infra-red, causing these objects to remain obscured. "

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" Everyone acknowledges that there is a political part to tenure, but no one likes to admit it. "

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" I am a professor of astronomy and physics at Yale University, where I teach an introductory class in cosmology. I see the deficiencies that first-year students show up with. "

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" Evidence-based reasoning underpins all scientific thinking, and it involves testing hypotheses or theories against data. Validating a theory requires replicable measurements from independent groups with different equipment and methods of analysis. Convergence of evidence is critical to the acceptance of a scientific idea. "

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" The existence of dark matter and dark energy are inferred from observations! They are not theoretical constructs. Though invisible, both reveal their presence through the effects that they exert on motions of celestial bodies and in the case of dark matter - the bending of light as well. "

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" The invisible and unseen has always fascinated us humans. "

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" Being nimble and ready to change our minds if need be is an attribute that is crucial to live and thrive in a society that is powered by science and technology, both as an individual and as an engaged citizen. "

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" Science is evidence-based and provides a continuing understanding of complex natural phenomena. Our understanding is constantly evolving and continually improving. "

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" Evidence has been mounting for the key role that black holes play in the process of galaxy formation. But it now appears that they are likely the prima donnas of this space opera. "

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" The geometry, the content, and the fate of the universe are all intricately linked. If you know two, you can deduce the third. "

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" Dark matter is one of the dominant constituents of the universe, which piled up in certain parts of the universe due to gravity, and in those regions, galaxies were formed. It is the unseen thing that holds the universe together. "

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" I find the world with its inequities and injustices to be messy, unfair, and complicated. The cosmos, on the other hand, is orderly and beautiful - this I find terribly alluring and captivating. "

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" My own day-to-day observations confirm that many Americans can barely make change. At the supermarket where I buy groceries, I've watched more than one encounter at the cash register where both customer and clerk are befuddled at the prospect of double-checking the sums. "

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" We must face up to a difficult paradox: The U.S. can maintain a leading position in science only by giving up its desire to be number one. "

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" We scientists have an obsession with unification, a grand synthesis. And dark matter is an irritating missing piece. "

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" Scientific knowledge is, by its nature, provisional. This is due to the fact that as time goes on, with the invention of better instruments, more data and better data hone our understanding further. Social, cultural, economic, and political context are relevant to our understanding of how science works. "

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" In an era of ever-increasing globalization, what it takes to become and remain a science superpower has fundamentally changed. "

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" Research in any domain of science today requires specialized training to build up knowledge and clinical competence. To make major breakthroughs, we need people with expertise who are engaged in sustained research over a long period of time - in a word, scientists. "

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" Black holes are enigmatic astronomical objects, areas where the gravity is so immense that it has warped spacetime so that not even light can escape. "

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" We already have a pretty good knowledge of the universe's mass-energy content, so if we can get a handle on its geometry, then we will be able to work out exactly what the fate of the universe will be. "

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" Data suggest that central black holes might play an important role in adjusting how many stars form in the galaxies they inhabit. For one thing, the energy produced when matter falls into the black hole may heat up the surrounding gas at the center of the galaxy, thus preventing cooling and halting star formation. "

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" It is my idea that the public needs to be better educated about the nature of scientific inquiry and how the scientific process works. I firmly believe that this is the only effective way forward to combat the widespread distrust in facts and science. "

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" We cannot explain the phenomenon of gravitational lensing without general relativity, and this is where MOND spectacularly fails. "

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" All the particles that we are made of only account for about four per cent of the cosmic inventory. "

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" In addition to a well-funded school system, we need to encourage and exploit innovative approaches for learning outside the classroom. "

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" Mapping, both literal and metaphorical, has always been about our quest for knowing. "

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" We need to make sure that the Voyager probes carrying a record of human civilization speeding beyond our solar system remain an introduction to the world that sent them and not an epitaph for a civilization that caused its own ruin. "

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" As Congress battles over spending and cost cutting, it is imperative that funding for math education programs does not fall victim. "

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