Stories by Charles Q. Choi

Recent studies shed some light on the efficiency of seasonally changing the clocks

Carbon dioxide may be acidifying seawater faster than thought

A way for quantum benefits to survive after entanglement ends

Also: updates on rabies recoveries, bioterror risks and the genetic tracking of religious persecution

The development of a key brain area leads to self-consciousness

Dark matter might exert measurable effects on Earth, the moon and gas giants

The ability to spread underlies the killing power of cancer. The process occurs, John Pawelek thinks, when tumor cells fuse with white blood cells—an idea that, if right, could yield new therapies

Also: electric fields increase fuel economy, sacrificial ants, explosive-free fertilizer and vanishing species

Also: updates on HIV's origins, Neandertal fishing and transgenic guidelines

A federal prison in Kentucky was a temporary home for thousands, including Sonny Rollins, Peter Lorre and William S. Burroughs as well as a lab for addiction treatments such as LSD