Table of Contents January/February 2015


Discover's 100 top stories of 2014 is jam-packed with the best in science from the past year. From space exploration to medicine, technology, paleontology and environment, we've got every field covered.

Highlights include a spacecraft's rendezvous with a comet, the origins of the first Americans, how to defeat hackers and an inside look at the Ebola outbreak. Don't miss any of the year's big stories — pick up an issue now.

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Scientists and health workers scramble to contain the world's worst Ebola outbreak.
The year brought new evidence that human activities are altering the climate in ever more obvious ways.
A 4-billion-mile journey ended this year when Rosetta reached Comet 67P.
Hackers breached the computer systems of major retailers this year. What can be done?
If the findings are verified, BICEP2 will have amassed the strongest support yet for cosmic inflation.
The limited number of marijuana studies are inconclusive regarding the drug's safety and efficacy.
Two discoveries in 2014 settled a contentious debate in archaeology.
What can we learn from the scandals that plagued scientific research in 2014?
A new specimen of Spinosaurus aegyptiacus helps researchers sort out its strange traits.
Researchers make an image using entangled photons.


A mental disease currently diagnosed just by its symptoms may soon yield genetic markers.
A field long touted for its therapeutic potential is finally producing results.
Scientists achieve nuclear fusion's 'ignition' milestone.
It's the first time the river has linked with its natural terminus in more than 60 years.

Mathematicians unlock numerical secrets behind the Rogers-Ramanujan identities.

The discovery of minor planet 2012 VP113 orbiting beyond Pluto changes the borders of our solar neighborhood.
The synthetic yeast chromosome marks the first step toward synthesizing a eukaryotic organism.
Scientists imaged more than 1,700 mouse brains to build the most comprehensive mammalian brain map yet.
Astronomers gained new insights into the life cycles of galaxies.
Clinicians may soon have a new tool to combat the virus.
Dreadnoughtus schrani's tail alone measures an impressive 30 feet.
Scientists grow a 3-D "brain" on a sponge-like scaffold.
By harnessing quantum mechanics, researchers caused light to assume a crystal-like form.
Thousands of industrial chemicals lack sufficient health and safety information.
A tiny speck of of the mineral ringwoodite makes waves.
"Bioreactor on a chip" could help meet rising demand for blood transfusions.
An analysis of funerary wrappings pushes back the beginnings of mummification.
A high-tech bionic pancreas provides better control of diabetics' blood sugar.
Energy beam can set drones and small enemy boats on fire.
Equations calculate how a rubbery material deforms under pressure.
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