Kip Thorne Trivia
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50 free Kip Thorne trivia questions with answers — science & nature quiz, new questions added Aug 2026.
Kip Thorne is the physicist Hollywood calls. He worked out wormhole physics for Carl Sagan's Contact, dreamed up Interstellar with producer Lynda Obst (whom Sagan had set him up with on a blind date), spent two weeks talking Christopher Nolan out of faster-than-light travel, and coached Cillian Murphy on playing Oppenheimer. In between he co-founded LIGO, the largest project the NSF ever funded, and shared the 2017 Nobel Prize in Physics when it finally heard two black holes collide. This Kip Thorne trivia quiz runs 50 questions across his life and work: Logan, Utah and his economist mother, John Wheeler at Princeton, full professor at Caltech aged 30, the hoop conjecture and the membrane paradigm, Thorne-Żytkow objects, traversable wormholes and the averaged null energy condition, LIGO's founding and first detection, the cosmic censorship and information-paradox bets with Stephen Hawking, Gravitation and Black Holes and Time Warps, and the films from Contact to Tenet. Easy questions come first; the final third is for people who know their Blandford-Znajek from their Hartle-Thorne. Every answer is verified against Wikipedia's articles on Thorne, LIGO, Interstellar, Stephen Hawking and the Thorne-Hawking-Preskill bet, with the supporting sentence quoted under each question. If you enjoy this quiz, try our black holes and Stephen Hawking quizzes next.
30 of 50 questions with answers and explanations. Play the quiz
Q 01The gravitational waves Kip Thorne helped detect in 2015 were predicted a century earlier by which physicist?
Albert Einstein
Albert Einstein. He was convinced the waves were too faint ever to be measured; catching one took twin detectors able to sense a change thousands of times smaller than an atomic nucleus.
Q 02Besides Interstellar, Thorne advised Christopher Nolan on the physics of which of these films?
Tenet
Tenet. Nolan had Thorne read the script and help with its ideas about time, while admitting that the film makes no claim to be scientifically accurate.
Q 03Thorne won a famous bet with Stephen Hawking over whether which cosmic object was a black hole?
Cygnus X-1
Cygnus X-1. Hawking bet against the black holes he had spent years studying, calling the wager an insurance policy in case they proved not to exist, and conceded in 1990.
Q 04Thorne was born in 1940 in Logan, in which state?
Utah
Utah. At 13 he discovered George Gamow's popular-science classic One, Two, Three... Infinity, and by his own account the book made him decide to become a theoretical physicist.
Q 05The gravitational waves behind Thorne's Nobel Prize are ripples in what?
Spacetime
Spacetime. Modern physics treats gravity as the bending of space and time, so a violent enough cosmic collision sends waves out through them like ripples spreading across a pond.
Q 06Thorne was raised in which church, which he later left at his mother's urging?
Latter-day Saints (Mormon)
Latter-day Saints (Mormon). His mother, an activist whom the local paper called an 'Old Radical', urged her children to leave over the church's discrimination against women, and all of them did.
Q 07With which film composer has Thorne staged multimedia concerts about black holes and gravitational waves?
Hans Zimmer
Hans Zimmer. The Interstellar composer's music plays over physicists' simulations of the warped universe, part of Thorne's effort to inspire people who would never open a physics book.
Q 08Which physicist, who popularised the term 'black hole', supervised Thorne's Ph.D.?
John Archibald Wheeler
John Archibald Wheeler. By his own account the name was shouted out by someone in a lecture audience, after he had spent months hunting for something snappier than 'gravitationally completely collapsed object'.
Q 09Interstellar, which Thorne helped conceive, won its only Academy Award in which category?
Best Visual Effects
Best Visual Effects. The artists rendered the film's black hole from Thorne's own equations, and what the images revealed about the bending of light was new enough to publish as physics papers.
Q 10At which university did Thorne become a full professor of theoretical physics at just 30?
Caltech
Caltech. From 1968 he built a research group there to predict what gravitational waves from space should look like, decades before any detector could catch one.
Q 11From 1991 to 2009 Thorne held a chair of theoretical physics named after which Nobel laureate?
Richard Feynman
Richard Feynman. Thorne gave the chair up in 2009 to begin a second career in books and film, a move that soon produced Interstellar.
Q 12Which scientist set Thorne up on a blind date with future film producer Lynda Obst?
Carl Sagan
Carl Sagan. Obst was Thorne's date to the premiere of Sagan's own television series Cosmos; the romance faded, but the friendship lasted and eventually produced Interstellar.
Q 13LIGO, which Thorne co-founded, caught two dead stars colliding in 2017, a crash seen forging which element?
Gold
Q 21During the Cold War, Thorne and his research partners shuttled almost yearly between California and which capital?
Moscow
Moscow. Thorne and Vladimir Braginsky's group there kept trading visits through the Cold War, and together devised quantum measurement tricks later built into gravitational-wave detectors.
Q 22Thorne's hoop conjecture says a collapsing object becomes a black hole only if it is squeezed how?
In every direction
In every direction. The imaginary hoop must fit however it is turned; Thorne left the wording deliberately loose in 1972, and mathematicians were still proving versions of it half a century later.
Q 23Which approach of Thorne's treats a black hole's surface as if it conducted electricity?
Gold. Telescopes that swung to the spot saw the glow of freshly made heavy elements, platinum among them, settling a decades-old puzzle over where such metals come from.
Q 14The gravitational waves Thorne spent his career chasing cross space at what speed?
The speed of light
The speed of light. A 2017 collision proved it: a burst of gamma rays reached Earth about two seconds after the waves, at the end of a journey of 130 million years.
Q 15Which US agency funded LIGO as its biggest-ever investment?
NSF
NSF. The National Science Foundation's director later called the 1992 decision a big risk, and the first detectors then listened from 2002 to 2010 without hearing a thing.
Q 16What does the "L" in LIGO stand for?
Laser
Laser. Thorne at first wrote the method off: his 1973 textbook set students an exercise meant to show it was impractical, a verdict he soon reversed and spent decades disproving.
Q 17LIGO's two observatories are in Livingston, Louisiana, and Hanford in which state?
Washington
Washington. The first signal reached the Louisiana detector seven milliseconds before it reached Hanford, a gap that told the team which half of the sky it had come from.
Q 18LIGO can sense changes one ten-thousandth the width of what?
A proton
A proton. To manage it, mirrors bounce each beam along its 4 km arm about 300 times, stretching the light's path to more than 1,000 km before the two beams are compared.
Q 19LIGO's first gravitational-wave detection, announced in February 2016, came from what event?
Two black holes colliding
Two black holes colliding. In a fraction of a second the merger turned about three Suns' worth of mass into gravitational waves, briefly out-powering every star in the visible universe put together.
Q 20Played as sound, the first signal LIGO detected is famously described as what?
A chirp
A chirp. It was so clean that many on the team took it for a drill, one of the fake signals secretly planted in the data to keep them on their toes.
The membrane paradigm
The membrane paradigm. Giving the hole an imaginary skin with electrical resistance lets astrophysicists reason about it like a circuit, and helped explain how spinning black holes may power quasars.
Q 24Which real phenomenon did Nolan leave out of Interstellar's black hole because it made the glowing disc look lopsided?
The Doppler effect
The Doppler effect. In Thorne's accurate version the side of the disc sweeping towards the camera blazed bright while the far side all but vanished, which the film-makers feared would baffle audiences.
Q 25Thorne said Interstellar's black hole must spin very fast to justify which story effect?
Time dilation
Time dilation. For a few hours near the hole to cost decades back on Earth, Thorne worked out that it must be enormous and whirling at very nearly the fastest rate that nature allows.
Q 26In 1988 Thorne showed that which hypothetical objects could, in principle, be turned into time machines?
Wormholes
Wormholes. The work began as a favour to a novelist friend who wanted to send his heroine across the galaxy through a black hole; Thorne told him it would not work and offered a tunnel through space instead.
Q 27Thorne's high-school debate partner, Merlin Olsen, went on to the Hall of Fame in which sport?
American football
American football. Olsen made 14 Pro Bowls in 15 seasons as a Los Angeles Rams defensive tackle, though the old debater kept up his studies and earned a master's degree in economics between seasons.
Q 28The beams in each arm of Thorne's LIGO detectors travel through one of the world's largest what?
Vacuum chambers
Vacuum chambers. Pumping the air out of the 4 km tubes took 40 days, and steel walls just 3 mm thick have held the atmosphere back ever since.
Q 29Thorne-Żytkow objects, predicted by Thorne and Anna Żytkow, are red supergiants with what at their core?
A neutron star
A neutron star. Such a hybrid would form when a neutron star collides with a giant star and sinks to its centre; in 2014 astronomers named the star HV 2112 as a candidate, a claim others have since disputed.
Q 30Seen from above, each LIGO observatory that Thorne helped found forms which letter?
L
L. The two arms meet at a right angle because a passing wave stretches space one way while squeezing it the other, so one arm grows as its partner shrinks.