Just as sailors can look to constellations for their bearings, interplanetary travelers could use pulsars to navigate the universe.
Physicists are looking inside atoms on Earth to learn more about mysterious neutron stars thousands of light-years away.
Signal hints at possible interactions between ordinary hydrogen and dark matter in the early universe, but some scientists remain skeptical.
About 100 years ago Henrietta Swan Leavitt helped prove the existence of other galaxies. She is still inspiring astronomers today (infographic).
New theoretical model predicts stars that fail to go supernovae may still not go gentle into that good night.