The iconic physicist and arguably one of the world's greatest minds, Stephen Hawking, died peacefully at his home in Cambridge, England, on March 14, 2018. As tributes pour out from colleagues, other cosmologists and enthusiasts the world over, Live Science looks back at Hawking's life. Though he used a wheelchair and could speak only through an electronic device in his cheek muscle (due to the debilitating motor neuron disease called ALS), Hawking probably did more in his lifetime for science and exploration than most others.
(Shown here, Hawking delivers a speech entitled "Why we should go into space" during a lecture for a series honoring NASA's 50th Anniversary, April 21, 2008, at George Washington University.)
The University of Cambridge physicist and author, Hawking, inside a lecture hall with mathematical equations in the background. In 1962, Hawking jointed the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge. In 1979, following in the footsteps of Isaac Newton, Hawking became the university's Lucasian Professor of Mathematics.
Celebrating his life
Hawking was born on Jan. 8, 1942, which was 300 years to the day after the death of the astronomer Galileo Galilei. It wasn't until age 21 that he was diagnosed with Lou Gehrig's disease, or amyotrophic lateral sclerosis (ALS). Two years before this diagnosis, Hawking married Jane Wilde. They had three children before separating.
When in Paris
Shown here on March 3, 1989, in Paris, France, Hawking would have been 47 years old at the time.
Speak to Me
On Oct. 3, 1993, Hawking met with Kate Caryer of the Vale School in North London at the "Speak to Me" exhibition, which he opened at the Science Museum.
In 1995, Hawking married Elaine Mason, shown here after their marriage ceremony at the Cambridge registry office. The couple divorced in 2006.
Royal Society award
The Duke of Edinburgh presents Hawking with the Royal Society for the Art Albert Medal during a ceremony at St James's Palace. His daughter, Lucy Hawking, looks on as her father is presented with the award for "making physics more accessible, understandable and exciting, and opening the subject to a wider audience through his books and television programs."
Kudos to Hawking
Hawking is seen on a TV monitor as he opens the XXV Prince of Asturias Awards Anniversary event in Oviedo, Spain, on April 12, 2005. Hawking won the Prince of Asturias Award for Concord in 1989.
South Korean writers
Hawking visits the stand of his German publisher Rowohlt at the Frankfurt Book Fair on Oct. 19, 2005. That year, the fair focused on authors from the Korean peninsula, with 60 writers showing up from South Korea. (No North Korean writers attended.)
Temple of Heaven
Assistants carry Hawking during his visit to the Temple of Heaven in Beijing, China, on June 18, 2006. The scientist was visiting Beijing for the 2006 International Conference on String Theory. The temple, which became a UNESCO Heritage site in 1998, "symbolizes the relationship between earth and heaven – the human world and God's world – which stands at the heart of Chinese cosmogony, and also the special role played by the emperors within that relationship," according to UNESCO.
Inspiring young minds
Hawking gives a lecture at the Bloomfield Museum of Science in Jerusalem on Dec. 10, 2006. According to Getty images, "Hawking filled the hall to capacity with young Israeli scientists."