Science Ticker
A roundup of research and breaking news
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We summarize the week's scientific breakthroughs every Thursday.
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		LifeSource of sperm and egg’s zinc sparks identified
Detailed imaging reveals the origin of zinc sparks that fly when egg meets sperm in mammals.
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		GeneticsEarly heart attack tied to rare mutations in two genes
Rare mutations in two genes greatly increase the risk of having a heart attack early in life, a study shows.
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		AnimalsMale monkeys’ social bonds may ease everyday stress
When male primates live in groups with other males, they tend to fight over females. But male-male bonding can reduce stress, a study finds.
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		AnimalsFinch sperm go long to fertilize more eggs
For finches, longer sperm mean a faster route to storage and a higher likelihood of being a dad at the end of the day.
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		NeurosciencePlace cells in brain reveal how memories are kept separate
Place cells' distinct firing patterns reveal how the brain has such a huge capacity for storing memories and distinguishing them from one another.
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		Science & SocietyMicrosoft cofounder funds new institute for cell science
The Allen Institute for Cell Science will be housed in the same building in Seattle as the Allen Institute for Brain Science.
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		Planetary SciencePluto probe wakes up one last time
The New Horizons probe will remain active for the remainder of its journey to Pluto.
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		GeneticsMale smokers more likely to lose Y chromosomes
Male smokers are more likely to lose Y chromosomes in their blood cells than men who have never smoked or those who have kicked the habit.
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		AstronomyNASA’s Orion spacecraft has flawless first test flight
NASA’s new vehicle for human exploration of deep space has successfully completed its first unmanned test flight.
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		NeuroscienceMain protein for sensing touch identified in mammals
A close look at how mice respond to touch has helped scientists pinpoint the protein, called Piezo2, that makes mammals feel the sensation.
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		ArchaeologyGenetic tests confirm remains are those of King Richard III
DNA evidence has finally confirmed that remains found beneath a parking lot in Leicester, England, are those of King Richard III.
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		Health & MedicineEbola vaccine shows no major side effects in small study
An experimental vaccine against Ebola virus has tested well in people, researchers report.