All Articles

Melpomene
genetics

As Animals Mingle, a Baffling Genetic Barrier

Despite swapping DNA through interbreeding, butterflies and other animals can maintain distinct species.

Multicellularity
evolution

Where Animals Come From

Bacteria may have helped single-celled organisms make the leap to multicellular animals.

Katherine Freese
Q&A

In Search of Dark Stars

Katherine Freese, a physicist who will soon lead the Nordic Institute for Theoretical Physics, reflects on the hunt for dark matter and how dark matter heating may have produced the first stars.

Biology

The New Science of Evolutionary Forecasting

Newly discovered patterns in evolution may help scientists make accurate short-term predictions.

origins of life

Hints of Life’s Start Found in a Giant Virus

Newly discovered specimens support a more ancient origin for viruses, perhaps all the way back to the origins of life.

David Spergel
Q&A

A Bold Critic of the Big Bang’s ‘Smoking Gun’

The cosmologist David Spergel explains why a widely publicized gravitational-wave discovery could be wrong, and how the “overreaching” study could affect the public’s perception of science.

Q&A

Early-Universe Explorer Looks for Answers

Chao-Lin Kuo, who helped design the experiment that claimed to have found evidence of gravitational waves from the Big Bang, isn’t bothered by criticism that cosmic dust may account for his results.

Boucing droplet
quantum mechanics

Fluid Tests Hint at Concrete Quantum Reality

Surprising oil drop experiments suggest that the quantum world may not be as strange as advertised.

evolution

The Game Theory of Life

An insight borrowed from computer science suggests that evolution values both fitness and diversity.