Many thousands of families have benefited directly from IVF since the birth of Louise Brown in 1978.
However, fertility treatment was not always as readily accepted as it is today and had it not been for Bob's scientific innovation and his passionate commitment to ensuring the technology was made available to all those who needed it, many parents would have been left childless.
Few scientists can say that their work has impacted on mankind in such a meaningful way. He was an exceptional man whose compassion and tenacity will be dearly missed.
More top news
The Oscar-winning actress has faced a backlash after telling a story about itching her "butt" on sacred Hawaiian rocks.
Samsung will release an update for their Galaxy Note 7 smartphones that will prevent them from charging and functioning as mobile phones.
Colombia's President Juan Manuel Santos has accepted the Nobel Peace Prize at a ceremony in Stockholm.