SCIENCE MAGAZINE: The latest issue features Strands of DNA-like thread coil, loop, and spill upward, evoking the genome’s dynamic three-dimensional architecture within the nucleus of a living cell.

Ebola’s rapid spread spurs new drug and vaccine trials

Pioneering studies are underway amid difficult conditions to address Bundibugyo’s threat

Contagious fish cancer overruns New England lake

Genetic studies reveal rare example of identical transmissible tumors

Climate scientists sharpen tools for linking global warming to extreme weather

National Academies report says more rigorous results will boost confidence in fast-growing field

Oldest known Mars rock offers glimpse of planet’s watery youth

Teghaza meteorite hints at surprisingly Earth-like crust and shows Mars was already losing its water 4.1 billion years ago