Putting together observations collected over eighteen months, the CZT Imager aboard AstroSat has accomplished the most sensitive measurement of the polarization of the Crab Pulsar.  The measurements revealed a surprising result: a sharp variation of polarization in the off-pulse region.  Read about this at the following links:

1. *The scientific article in Nature Astronomy (published Nov 6, 2017)
   

2. *Press Release (ISRO, IUCAA)
   

3. *ISRO Story of the Week
   

4. *“How to trace a celestial lighthouse using a block of metal?” - ASI POEC