Dead men tell no tales, but dead stars have plenty to say. Traces of elements left behind after stars explode can inform astronomers about how the star was ripped apart. NuSTAR, the first telescope capable of detecting high-energy X-ray signatures of radioactive elements in supernova remnants, recently captured a picture of a dying star’s last gasp.
Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History.
Nature: Asymmetries in core-collapse supernovae from maps of radioactive 44Ti in Cassiopeia A
nature.com/nature/journal/v506/n7488/full/nature12997.html NuSTAR: Bringing the High Energy Universe into Focus
nustar.caltech.edu/ Chandra X-Ray Observatory: Cassiopeia A
chandra.harvard.edu/photo/2013/casa/ NASA: What Is A Supernova?
nasa.gov/audience/forstudents/5-8/what-is-a-supernova.html#.UynG9a1dXIU Supernova Remnants