<https://insider.si.edu/2010/11/chandra-x-ray-observatory-finds-youngest-nearby-black-hole/#webpage>
<http://schema.org/url>
<https://insider.si.edu/2010/11/chandra-x-ray-observatory-finds-youngest-nearby-black-hole/>
<https://insider.si.edu/2010/11/chandra-x-ray-observatory-finds-youngest-nearby-black-hole/>