Birds may use fractals as a way of judging mates.
NASA's Hi-C (High-Resolution Coronal Imager) mission spotted never-before-seen solar magnetic braids.
Experts diverged on best interpretations of quantum theory, including whether Einstein was right or wrong.
Hubble could run for at least a year after its successor, the James Webb Space Telescope, launches in 2017.
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If the petition gathers 25,000 signatures, the Obama administration must issue an official response.
Meteorites and electronics equipment worth more than $100,000 were taken from a science center on Christmas Eve.
Three new crewmembers blasted off on a Russian rocket from Kazakhstan, bound for the International Space Station.