Stephen Hawking dies aged 76

• http://www.bbc.com/news/uk-43396008
• https://newatlas.com/stephen-hawking-dies/53801/ 
• https://edition.cnn.com/2018/03/14/health/stephen-hawking-dead/index.html 
• https://www.theguardian.com/science/2018/mar/14/stephen-hawking-professor-dies-aged-76 
• https://www.theverge.com/2018/3/14/17118570/stephen-hawking-dies 
• https://www.huffingtonpost.com/entry/stephen-hawking-dead-obituary_us_55e9fa97e4b03784e275e7c1 
• https://www.nytimes.com/2018/03/14/obituaries/stephen-hawking-dead.html