Table of Contents January/February 2018

Discover's 100 top stories of 2017 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 the the Great American Eclipse, science under Trump, ancient trackways, new planets and "living drugs."
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The solar event that transfixed Americans from sea to shining sea.
Our ancestors’ origin story is being refined.
A gravitational wave and a flash of light open up a new field of astronomy.
We break down the Trump administration’s salty relationship with science.
Researchers in a U.S. lab finally test the revolutionary gene-editing tool in human embryos.
The FDA approves a powerful gene therapy to fight a resistant cancer.
A record-breaking number of Earth-sized planets orbit a faint star in a nearby galaxy.
Fossilized footprints may change our family tree.
The Saturn probe completes its years-long mission in a fiery descent.
The deluge that swamped Houston changes how we measure downpours.


Life Beneath Enceladus’ Ice?
The Cassini probe reveals a chemical brew erupting from the Saturnian moon.
Protein in Dinosaur Rib Is 195 Million Years Old
We can now find chemical signatures in a fossil without destroying it.
A Functioning Fake Womb
Healthy sheep are born from an artificial placenta.
Essay: Clock Ticking on Superbugs
U.S. feels the walls closing in as drug-resistant infections spread.
Pinpointing a Fast Radio Burst
Rare, sudden surges of radiation originate in a dwarf galaxy 2.5 billion light-years away.
Fighting Politics With Math
Theorem detects gerrymandering in congressional districts.
Sea Level Rise: Slow But Inexorable
Putting the brakes on greenhouse gases won't yield immediate results.
Pig Cells That Won’t Go Retro
Bioengineers get closer to a pig organ that could be used for human transplants.
Portable Detector Shakes Up Neutrino World
Device is 100 times more sensitive — and way smaller.
Icy Split-Up Could Destabilize Larsen C
Glaciologist hints at what's next for a trillion-ton iceberg the size of Delaware.
Juno Delivers Jupiter’s Secrets
"In many ways, it's a new Jupiter," lead investigator says.
Age Is Just a Number (of Neural Stem Cells)
Brain region controls aging process, opening the door to prolonging life.
CRISPR Goes to the Movies
Video pixel data is encoded in bacterial DNA.
Sifting Soil for Human Ancestors
Scientists extract hominin DNA just from dirt.
How to Preserve a Dinosaur
Remains of 112 million-year-old plant-eater show off impressive body armor and shoulder spikes.
Sperm Counts Plummet
Research points to environmental factors as culprits.
Psychedelic Drug Tapped for PTSD Therapy
Main ingredient of ecstasy rides the fast track to FDA approval.
A Charming New Particle
CERN discovery was more than 30 years in the making.
Octopuses Can Stray From Their DNA
By editing their genetic material, they can gain new traits.
Mice Born From Space Sperm
Cells brought from the International Space Station offer some hope for future space colonists.
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