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60 Lost in Space Trivia Questions, Answers, and Fun Facts

How much do you know about Lost in Space? This category is for trivia questions and answers related to Lost in Space (Television). Each one is filled with fun facts and interesting information.
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1 What field of study did 19 year old Judy Robinson have to postpone in order to make the trip with with her family?
Answer: musical comedy

Believe it or not, Judy was studying for a career in musical comedy. Her brother Will graduated from a prestigious science school at the age of nine, and sister Penny had an IQ of 127. Both were child prodigies. Poor Judy's role on the show was relegated to playing the ditsy blond hottie and eye candy for Major West.
  From Quiz: The "Lost In Space" Unaired Pilot
2 What was the name of the Robinsons' spacecraft in the pilot episode "No Place to Hide"?
Answer: Gemini XII

It was changed from Gemini XII to Jupiter II to avoid confusion with NASA, the then current Gemini program.
  From Quiz: "Lost in Space" Lives Forever
3 Why does the Space Family Robinson leave the first planet they crashed onto?
Answer: John and Don discover that the planet is breaking up.

Character actor Strother Martin has a memorable role as an old miner in this episode, the first of the second season.
  From Quiz: Still "Lost in Space"
4 What is the first planet the Robinsons land on?
Answer: Preplanis

We had no clue (and thought the Robinsons didn't!) until Will went back to Earth (Episode 15, "Return From Outer Space") and informed everyone that they were on Preplanis!
  From Quiz: More "Lost in Space"
5 Name the members of the Robinson family.
Answer: John, Maureen, Judy, Penny, and Will

John Robinson was played by Guy Williams, Maureen Robinson by June Lockhart, Judy Robinson by Marta Kristen, Penny Robinson by Angela Cartwright, and Will Robinson was played by Billy Mumy. Major Don West, played by Mark Goddard, was not a member of the family. He was the pilot hired for the mission.
    Your options: [ John, June, Judy, Penny, and Will ] [ John, Maureen, Don, Judy, Penny, and Will ] [ John, Maureen, Judy, Penny, and Will ] [ John, June, Don, Judy, Penny, and Will ]
  From Quiz: The Space Family Robinson
6 Who played Professor John Robinson?
Answer: Guy Williams
  From Quiz: 'Lost In Space' Trivia
7 What was the reason for trying to reach another planet?
Answer: Earth was getting overpopulated.

Just before launch, the President makes an announcement on TV and explains to the viewers about Earth's over population and hopes that the people of Earth will be able to move to another planet. In the 2003 film of the same name, the reason was because the people of Earth were about to use up all of Earth's natural resources including fossil fuels.
  From Quiz: The "Lost In Space" Unaired Pilot
8 In episode 44 "The Golden Man" Mr Keema was to fight a war with whom?
Answer: Leader of the Zedams

The Zedams were frog-like aliens. The Saticons were in two "Lost In Space" episodes, "Wreck Of The Robot" and "Galaxy Gift", they were my favorite aliens. Gilt Proto was from the episode "Target Earth". Protinius was the super computer in "The Space Primevals".
  From Quiz: "Lost in Space" Lives Forever
9 Who is Dr. Smith's evil double?
Answer: Zeno

Daddy Zack was also Smith's double, with a huge personality change: he loved everyone and was a hard worker!
  From Quiz: Still "Lost in Space"
10 In episode 14, "Attack of the Monster Plants," who is "eaten" and duplicated by one of the giant plants?
Answer: Judy

The plants seemed menacing at the time, but now they're hilarious!
  From Quiz: More "Lost in Space"
11 How many human freezing tubes were on board the Jupiter II?
Answer: six

Even though there were seven humans aboard, there were only six tubes: Dr. Smith was accidentally trapped on the Jupiter II and, therefore, a tube had not been planned for him.
  From Quiz: The Space Family Robinson
12 What year did the Robinsons leave Earth?
Answer: 1997

October 16, 1997. It was said several times during the first episode.
  From Quiz: 'Lost In Space' Trivia
13 What was the name of the Robinsons' spaceship?
Answer: Gemini 12

In 1965, the Gemini program was the ongoing program at the time. Though the timeline for the show was 1997, they may have thought Gemini would still be around or perhaps they felt that they needed to use a recognizable current name for the ship. In the 2003 movie, the ship that launched was the Jupiter 1. When the Jupiter 1 reached orbit, its outer shell broke away to reveal the Jupiter 2 inside.
  From Quiz: The "Lost In Space" Unaired Pilot
14 In which episode did Dr. Smith and Major Don West swear to become eternal friends?
Answer: The Space Primevals

When trapped in an underground cave and running out of air, they make friends with each other, a very touching moment.
    Your options: [ His Majesty Smith ] [ Condemned Of Space ] [ Space Fugitives ] [ The Space Primevals ]
  From Quiz: "Lost in Space" Lives Forever
15 When the Robot grows to an enormous size, how does Will repair him?
Answer: He goes inside him and reverses his ionic process.

A really good (if completely unbelievable) episode, filled with props that we saw in other episodes, but who cares?!
  From Quiz: Still "Lost in Space"
16 What part of Dr. Smith's body did he most often describe as "extremely delicate?"
Answer: his back

Dr. Smith frequently used his "delicate back" as an excuse to get out of...everything!
  From Quiz: More "Lost in Space"
17 How did the Jupiter II become lost in space?
Answer: Dr. Smith's added weight threw the ship off course and into an uncharted meteor storm.

Dr. Smith was really a spy and saboteur from a foreign country. When you think about it, he was actually quite inept -- I mean, come on, he got trapped on the very ship he's set to destroy?! Would YOU hire him to spy for your country?
  From Quiz: The Space Family Robinson
18 How many years were the Robinson's supposed to remain in hyper-sleep during the trip?
Answer: 98 years

In the pilot, the journey was supposed to take 98 years to reach Alpha Centauri which is 4.37 light years away. In the first episode of the TV series, the crew was to sleep for only five and a half years. More than likely, they changed the amount of time it would take because the narrator of the pilot episode said that the ship would be traveling at near the speed of light for 98 years. 98 years at the speed of light would have put them way past Alpha Centauri.
  From Quiz: The "Lost In Space" Unaired Pilot
19 In episode 61 "Visit To A Hostile Planet," the Robinsons went back in time and landed on Earth in what year?
Answer: 1947

The Robinsons find they have traveled into a space-time vortex and land on Earth in Michigan 1947.
  From Quiz: "Lost in Space" Lives Forever
20 What space pirate had a mechanical parrot?
Answer: Captain Alonzo P. Tucker

Captain Tucker was originally from Earth!
  From Quiz: Still "Lost in Space"
21 Who won the "Miss Galaxy" beauty pageant?
Answer: Judy

The Robot, entered in a blond wig, was hilariously disgusted!
  From Quiz: More "Lost in Space"
22 What was the name of the van-like vehicle used to carry the entire crew on alien soil?
Answer: The Chariot

The space pod was a smaller space vehicle used for short-distance flights.
  From Quiz: The Space Family Robinson
23 What was the robot's main job on the ship?
Answer: There was no robot

The robot was introduced in the first episode of the TV series and was not in the pilot. In the first TV episode, the robot is programmed by Dr. Smith to destroy navigation and communications of the ship eight hours after liftoff.
  From Quiz: The "Lost In Space" Unaired Pilot
24 In episode 50 "Rocket To Earth," what was the name of the great magician?
Answer: Zalto

Kanto was the alien in the episode "Follow the Leader", Myko was the alien in the episode "The Deadly Games of Gamma" and Morbius was the alien in a "Visit to Hades".
  From Quiz: "Lost in Space" Lives Forever
25 How many times did any or all of the crew get back to Earth?
Answer: five

Will returned in episode 15, "Return From Outer Space."
Will and Dr. Smith returned in episode 58, "The Astral Traveler" and in episode 77, "The Time Merchant."
The entire crew returned in episode 61, "Visit to a Hostile Planet." (The hostile planet was Earth, circa 1947.)
A fifth time in "Target Earth", Will and Smith landed briefly on Earth.
  From Quiz: Still "Lost in Space"
26 Who played the boy, Quano?
Answer: Kurt Russell

It was about this same time that Kurt played a jungle boy on "Gilligan's Island."
  From Quiz: More "Lost in Space"
27 Who was Mr. Nobody?
Answer: A bodiless voice in a cave that Penny befriended

Mr. Nobody gives Penny diamonds as toys, and, of course, greedy Dr. Smith has to have some of that action!
  From Quiz: The Space Family Robinson
28 Who was the alien that said 'Handsome pretty handsome Dr. Smith'?
Answer: Athena

She was the green lady with that salad bowl thing on her head. We used to see her floating outside the Jupiter calling for Dr. Smith. Gotta love her!
  From Quiz: 'Lost In Space' Trivia
29 What caused the spaceship to go off course?
Answer: The ship ran into a meteor storm.

In the pilot, the ship ran into a meteor storm which threw it off course. The crew remained asleep during the ordeal and awoke after the ship crashed landed on an uncharted planet. In the first TV episode, it was Dr. Smith's added weight that threw the ship off course and into the meteor storm.
  From Quiz: The "Lost In Space" Unaired Pilot
30 In episode 32 "Ghost Planet," what was the name of the space controller?
Answer: Officer 03

Dr. Smith again gets the Robinsons in trouble in this episode landing on this strange planet. Dr. Smith gives the aliens most of the weapons for a rich reward but is tricked and is put to work. It is also where the Robot falls in love for the first time with the evil Officer 03. In a later episode this evil Robot returns.
  From Quiz: "Lost in Space" Lives Forever
31 What color did Urso turn Will?
Answer: green

For all their sophisticated and hi-tech equipment, Maureen put Will in an old-fashioned tub outside and tried to scrub the green off of him! (Actually, he looked exactly the same on our black and white tv!)
  From Quiz: Still "Lost in Space"
32 Why couldn't the boy in the mirror get out?
Answer: He didn't have a reflection.

Michael J. Pollard played the unnamed boy, who couldn't shoot at his reflection (the only way out) because he didn't have a reflection.
  From Quiz: More "Lost in Space"
33 In episode five, "The Hungry Sea," who falls off the roof of the Chariot, seemingly drowned?
Answer: Don

During the fierce storm at sea, Don had to get on the roof to repair the navigational system. He was swept over the side and feared lost, but managed to cling on to the side ladder.
  From Quiz: The Space Family Robinson
34 When did "Lost in Space" first air?
Answer: September 15, 1965
  From Quiz: 'Lost In Space' Trivia
35 How many years had passed from the time the crew launched to the time that they crashed on the planet?
Answer: 3 1/2 years

The ship launched in 1997. Six months after the crash, you see Professor Robinson writing in his log book with the date of December 3, 2001. He took his readings from the ship's chronometer. He details the progress that the crew has made in the six months of being stranded. They set up camp and also started a garden to feed themselves.
  From Quiz: The "Lost In Space" Unaired Pilot
36 How many episodes did Robby the Robot appear in?
Answer: 2

Robby the Robot appeared in two episodes, "War Of The Robots" and "Condemned Of Space".
  From Quiz: "Lost in Space" Lives Forever
37 In episode 19, "Ghost in Space," who does Dr. Smith try to conjure during his seance?
Answer: Uncle Thaddeus

Dr. Smith was not successful in conjuring Uncle Thaddeus, but instead summoned a creature from the bog.
  From Quiz: Still "Lost in Space"
38 How does Verda come to the planet?
Answer: Dr. Smith orders her from an android machine.

Verda came from an intergalactic department store, and the manager, Mr. Zumdish, arrived later, demanding payment.
  From Quiz: More "Lost in Space"
39 Who is the first earthling the Robinsons encounter on an alien planet?
Answer: Jimmy Hapgood

Hapgood had left Earth fifteen years prior to the Robinsons in his space capsule, called "Traveling Man."
  From Quiz: The Space Family Robinson
40 What was the 'NASA' of "Lost in Space"?
Answer: Alpha Control
  From Quiz: 'Lost In Space' Trivia
The rest of the questions and answers can be found in our quizzes here:
Lost in Space Quizzes