.. title: S. Chandrasekhar's 107th Birthday .. slug: s-chandrasekhars-107th-birthday .. date: 2017-10-20 13:40:11 UTC-07:00 .. tags: physics .. category: .. link: .. description: .. type: text Looks like Google celebrated Subramanya Chandrasekhar's 107'th birthday with a doodle. I had missed it, so I got excited to go check it out again. .. image:: https://www.google.com/logos/doodles/2017/s-chandrasekhars-107th-birthday-5671696282419200-2xa.gif The doodle is amazing! It illustrates the concept of a star when it gains 1.4 times the mass of sun will turn into white-dwarf and eventually into a black-hole! Chandrasekhar discovered this, and it is known as Chandrasekhar's limit.