Stephen Hawking first appeared on the BBC in the 1977 documentary The Key to the Universe: The Search for the Laws of Creation | BBC Archive

In just two and a half minutes, Alok Jha explains why black holes are doomed to shrink into nothingness then explode with the energy of a million nuclear bombs, and rewinds to the big bang and the origin of the universe. This animation was originally published in 2013. Here is again, on the day Stephen Hawking's death is announced. | The Guardian

"So remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do and succeed at. It matters that you don’t just give up. Unleash your imagination. Shape the future." - Stephen Hawking, Brief Answers to the Big Questions | Stephen Hawking