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Eight amazing science stories of 2017 It was a year of endings and beginnings: the plucky Cassini spacecraft's 13-year-long mission reached its finale, while the fledgling field of gravitational wave astronomy bagged the catastrophic collision of two dead stars.
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First photosynthesis took place 1.25 billion years ago: Study Toronto, Dec 24 (IANS) The process of photosynthesis in plants first took place 1.25 billion years ago, finds a study that identified an algae fossil, believed to be the world's oldest known direct ancestor of modern plants and animals.
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