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  • A technique for weighing galaxy clusters using distortions of the cosmic microwave background is entering an era of precision measurements.

    • Mathew S. Madhavacheril
    News & Views
  • The detection of bright, rapid optical pulsations from pulsar PSR J1023+0038 have provided a surprise for researchers working on neutron stars. This discovery poses more questions than it answers and will spur on future work and instrumentation.

    • Craig O. Heinke
    News & Views
  • The first extraterrestrial detections of a member of the organohalogen family of molecules have been made towards comet Churyumov–Gerasimenko and low-mass protostar IRAS 16293-2422. Chloromethane, considered to be a biomarker, can form efficiently abiotically.

    • Marcelino Agúndez
    News & Views
  • The excellent resolution provided by radio interferometry provides a unique way to probe galaxy mergers and supermassive black hole binary dynamics.

    • Sarah Burke-Spolaor
    News & Views
  • Although predicted 50 years ago, the polarization of light from a rotationally distorted stellar atmosphere has only recently been detected, thanks to polarimetry measurements with precision at the parts-per-million level.

    • J. Patrick Harrington
    News & Views
    • Carl D. Murray
    News & Views
    • Bonnie J. Buratti
    News & Views