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. Stephen Hawking curiousexistfoot Change image and share on social
I don't think the human race will survive the next thousand years, unless we spread into space. Stephen Hawking humanracespace Change image and share on social
It's time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to know if we are alone in the dark. Stephen Hawking answercommitcreature share on social
There is no physical law precluding particles from being organised in ways that perform even more advanced computations than the arrangements of particles in human brains. Stephen Hawking advancearrangementbrain Change image and share on social
I was born on January 8, 1942, exactly three hundred years after the death of Galileo. I estimate, however, that about two hundred thousand other babies were also born that day. I don't know whether any of them was later interested in astronomy. Stephen Hawking astronomybabybear share on social
We think that life develops spontaneously on Earth, so it must be possible for life to develop on suitable planets elsewhere in the universe. But we don't know the probability that a planet develops life. Stephen Hawking developearthlife share on social
No one undertakes research in physics with the intention of winning a prize. It is the joy of discovering something no one knew before. Stephen Hawking discoverintentionjoy Change image and share on social
There is no heaven or afterlife for broken-down computers; that is a fairy story for people afraid of the dark. Stephen Hawking afraidafterlifebreak Change image and share on social
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global nuclear war, a genetically engineered virus or other dangers we have not yet thought of. Stephen Hawking dangerdisasterearth Change image and share on social
The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizza, let alone cooking it. Stephen Hawking bangbigcook share on social