AP May 11, 2015, 11:20 AM A new type of blood test is starting to transform cancer treatment, sparing some patients the surgical and needle biopsies long needed to guide...
Comets, stem cells and cosmic dust are among the year’s top stories.
This year may be best remembered for how quickly scientific triumph morphed into disappointment, and even tragedy: breakthroughs in stem-cell research and cosmology were quickly discredited; commercial spaceflight faced major setbacks. Yet landing a probe on a comet, tracing humanity’s origins and a concerted push to understand the brain provided reasons to celebrate.
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