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Puerto Rico's iconic telescope facilitated important scientific discoveries while inspiring young scientists and the public imagination.
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Astronomers have mapped about a million previously undiscovered galaxies beyond the Milky Way, in the most detailed survey of the southern sky ever carried out using radio waves.
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Obama was briefed on UFOs but isn't quick to give up any information.
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Something pretty big is speeding toward Earth and will pass close by, but scientists aren't sure what it is.
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The unfamiliar landscape of America's medical past is marked by bizarre incidents, forgotten breakthroughs and selfless sacrifice
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Australian researchers figure out a new way to apply extreme pressure and squeeze out diamonds.
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Of course, it's all about where you move. The authors argue that it needs to be less populous regions.
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Underperforming, U.S. comes in only 157th out of 196 in global triangularity ranking
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A mineral made in a Kamchatka volcano may hold the answer to cheaper batteries, find scientists.
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Zircons in a Martian meteorite widens the possible timeframe for life on Mars.