A number of high-energy anomalies raised hopes that astrophysicists had seen their first direct glimpses of dark matter. New studies suggest a different source may be responsible.
In applying game theory to biology and human behavior, have scientists focused too much on competition over cooperation?
Astronomers are mystified by a strange star explosion in a distant galaxy that might be a relic from an earlier cosmological era.
The Zoomable Universe, a new book by the astrobiologist Caleb Scharf, the illustrator Ron Miller and 5W Infographics, tours the universe’s 62 orders of magnitude.
Which mattered first at the dawn of life: proteins or nucleic acids? Proteins may have had the edge if a theorized process let them grow long enough to become self-replicating catalysts.
And not destroy humanity in the process.