Reporter Tim O'Hara, while covering a flight of the Air Force X-15, finds a spaceship that contains a genuine martian...

There is dual girl trouble in the O'Hara household. George, the dog who Tim is looking after for Mr. Burns, is in lov...

Martin comes down with a common cold, which is not so common but rather debilitating for Martians. Meanwhile Tim is s...

Martin reads about a $2 billion American space program, a program he knows is doomed for failure. Not wanting to see ...

Renowned scientist Professor Newton Jennings posits that life no more advanced than amoebas or jellyfish can exist on...

To get some rarefied air, Martin goes atop a water tower. Passersby, including the police, think he's a jumper and he...

Martin allows himself to experience an emotion foreign to Martians: love at first sight. He falls hard for Peaches An...

Tim talks Martin into temporarily giving him a Martian power. Martin decides to give him the power of levitation for ...

When the junk men come by, they mistakenly empty Martin and Tim's garage instead of Mrs. Brown's, and in doing so tak...

When Martin almost gets a parking ticket, Tim thinks it might be a good idea if Martin legitimizes his Earthly drivin...

Martin needs the hardest substance possible to repair his spaceship, the substance he has in mind is silibalt, an all...

Tim is pursuing who seems to be the unattainable Cynthia Parker. Through reading her mind, Martin finds out that Cynt...

The O'Hara's have new neighbors, the Richmonds, within the family being young Stevie and his grown up sister Jennifer...

Tim's cousin Harvey is coming for a visit, which means Martin is going to have to go into hiding since Harvey would k...

The stupidest idea Martin has heard of since he's been on Earth: Rosemary Willis leaving her cat, Max, $650,000 in he...

Martin can make it back to Mars since Mars has deviated from its regular orbit temporarily and is thus closer to Eart...

Something is causing Martin's metabolism to go haywire. In succession, he loses control of his levitation finger, he ...

Martin and Tim are on their way to interview Professor Eugene Downey, the foremost expert on rocket fuel - Martin thi...

At the museum, Martin discovers that the long-time curator, Wilbur Canfield, is very unhappy. He has just acquired a ...

Martin wants to help Tim with the household expenses, and without a money earning activity, decides to sell art he's ...

The Inter-Galaxy Corporation is launching a rocket to either Mars or Venus. Martin needs to convince them to choose M...

Tim discovers that Martin's antennae can pick up radio and television signals and other things. While Martin's asleep...

After Martin makes Tim miss a deadline, Martin decides to help Tim get an exclusive interview. Jakobar, the rogue lea...

Mrs. Brown is taking a course on how to be a private detective, and her first assignment is to prepare a dossier on a...

Pete Dudley, a real estate salesman, convinces Mrs. Brown that she should sell her ramshackle of a house, which cause...

Since Tim is unavailable for an outing, Martin asks Mrs. Brown out on a "date". Mrs. Brown herself can't make it sinc...

Martin needs to electrically charge himself for his trip back to Mars. However he overcharges himself. He needs to ri...

Martin can't work on his spaceship because neighborhood boy, won't leave him alone. Martin is so stressed that his an...

Martin needs to fly his space ship, which is deteriorating due to inertia. Tim's fear is realized: Martin's flight is...

The Earthly environment is causing a vitamin deficiency in Martin. He draws on energy and vitamins from everything an...

Mrs. Brown's niece, Paula Clayfield, comes for visit. A former child prodigy, Paula has always relied on her brains t...

During an electrical storm, Martin gets an affliction called popsy, which causes him to appear and disappear uncontro...

Martin finds that he is prematurely aging due to the increased gravity on Earth compared to Mars. Thus he goes throug...

Martin convinces Tim to use his connections as a reporter to get Martin a tryout as the astronaut for a Mars destined...

Tim and Mr. Burns' nephew, Freddie Carson, are in the running for promotion to journeyman reporter at the newspaper. ...

Tim gets mad at Martin for "disappearing and spying" on him while he has a date at the apartment. To make up for this...

A toothache of his "eye" tooth causes "eye" problems for Martin: he can't see. Tim takes him to see his dentist, alth...