Spacecraft navigation uses X-rays from dead stars

The remnants of a collapsed neutron star, called a pulsar, are magnetically charged and spinning anywhere from one rotation per second to hundreds of rotations per second. These celestial bodies, each 12 to 15 miles in diameter, ...

Size matters for bee 'superorganism' colonies

Scientists have carefully studied the intricacies of how individual organisms live and act together in groups known as biological collectives. In "superorganisms" such as bee colonies, the interactions of the individual members ...

Solar radio signals could be used to monitor melting ice sheets

The sun provides a daunting source of electromagnetic disarray—chaotic, random energy emitted by the massive ball of gas arrives to Earth in a wide spectrum of radio frequencies. But in that randomness, Stanford researchers ...

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