Archive

Planetary geologist Meenakshi Wadhwa uses Martian meteorites to trace the history of our solar system.

Digital security depends on the difficulty of factoring large numbers. A new proof shows why one method for breaking digital encryption won’t work.

Two independent papers vanquish lingering doubts about LIGO’s historic discovery of gravitational waves.

A report that a fish can pass the “mirror test” for self-awareness reignites debates about how to define and measure that elusive quality.

Neither animal, plant, fungus nor familiar protozoan, a strange microbe that sits in its own “supra-kingdom” of life foretells incredible biodiversity yet to be discovered by new sequencing technologies.

Equations, like numbers, cannot always be split into simpler elements.

The renowned physicist Leonard Susskind has identified a possible quantum origin for the ever-growing volume of black holes.

For 50 years, the astrophysicist Martin Rees has contributed to our understanding of cosmology. Now he is speaking up about the promise and potential dangers of the science and technology that will arrive over the next 50 years and beyond.

As it becomes clear that the body’s cells have more diverse regenerative capabilities than expected, experts have had to reconsider their approach to stem cell research.