Hidden "Planet X" Could Orbit in Outer Solar System
In the far reaches of the solar system, a hidden planet larger than Earth may be lurking
Features
How Bitter Taste Receptors Defend the Body against Bacteria
Bitter taste receptors are not only on the tongue but throughout the body, where they defend us against microbial invaders
The Race to Build the Unhackable Network
Quantum computers will render today's cryptographic methods obsolete. What happens then?
Africa's Population Will Soar Dangerously Unless Women Are More Empowered
Population projections for the continent are alarming. The solution: empower women
Critical Ingredients for Brain Development
An understanding of formative periods of intense learning during childhood suggests strategies for correcting neurological and psychiatric disorders later in life
David H. Levy Reflects on Life as a Comet Hunter
The need to pass a French test, of all things, spurred half a century of cosmic sleuthing
Departments
The Collective Wisdom of Ants
- From the Editor
The Search for Planet X, a Cosmic Quest and Better Lives on Earth
- Letters
Readers Respond to "The Power of Sleep"
- Advances
Last Call: Will WIMPs Show Their Faces in the Latest Dark Matter Experiment
Language Could Diagnose Parkinson's, ALS and Schizophrenia before Lab Tests
Your Ear Is a Tape Measure
When Marijuana Kills: Rat Bait at Illegal Pot Farms Is Needlessly Poisoning Larger Animals
There's a New Crash Dummy in Town
In Case You Missed It: The first 3-D color hologram, An in-office paper-recycler and more!
Astronomers Discover How Tentacled "Space Jellyfish" Form
Elemental Urgency: Most Metals Have Inadequate or Nonexistent Alternatives
The Great Tit Chooses Love over Food
- Forum
Basic Science Can't Survive without Government Funding
- The Science of Health
How Data Brokers Make Money Off Your Medical Records
- The Science Agenda
We Need More Proof That Prenatal Gene Screens Are Beneficial
- TechnoFiles
When Will We Be Able to Vote Online?
- Recommended
Book Review: Contact Sport
Book Review: Tunnel Visions
Book Review: Home
Book Review: The Last Volcano
- Skeptic
Can Our Minds Live Forever?
- 50, 100 & 150 Years Ago
Industry in 1916: Dedicated to Producing More and Better Armaments
- Graphic Science
Developing Countries Are Battling Diseases of the Rich and Poor
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