Explore how the universe began—and thwart evil along the way—in this cosmic adventure from Stephen and Lucy Hawking that includes a graphic novel.George has problems. He has twin baby sisters at home who demand his parents' attent...

George and Annie are off on another cosmic adventure inspired by the Mars Expedition in the fifth book of the George's Secret Key series from Stephen and Lucy Hawking.George and his best friend, Annie, have been selected as junior ast...

George and Annie are off on another cosmic adventure to figure out why strange things are happening on Earth in the fourth book of the George's Secret Key series from Stephen and Lucy Hawking.George and his best friend Annie haven't h...

#1 NEW YORK TIMES BESTSELLERWhen and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent "grand design" of our universe evidence of a benevolent creator who set things in motion—or d...

Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful t...