What Defines a Stem Cell?
Microbiology:Our cells have more diverse regenerative capabilities than anyone expected.
Does Having Kids Make Mothers Age Faster?
Reproduction:Evidence is stacking up on both sides of an age-old debate.
If ET Calls, Think Twice About Answering
Aliens:Why some say searching for ET is best done quietly.
The Multiverse As Muse
Physics:The uncertainty of quantum mechanics provided a perfect literary model for Modernist ideas.
Is Consciousness Fractal?
Neuroscience:Our subconscious love for fractals may tell an evolutionary story.
This Man Is About to Blow Up Mathematics
Math:Harvey Friedman is about to bring incompleteness and infinity out of quarantine.
Spark of Science: Pardis Sabeti
Genetics:The computational geneticist explains why she chose research over being a doctor.
Spark of Science: Jon Beckmann
Zoology:The conservation ecologist discusses the plight of animals in a human-dominated landscape.
Spark of Science: Rob Pringle
Environment:The Princeton ecologist tells us about the scientists who inspired his work.