The 32nd episode of ABC’s science fiction anthology series, Tales Of Tomorrow, airs on ABC, with each episode’s opening titles proclaiming that the series is produced “in cooperation with the Science-Fiction League of America”, a collective of sci-fi writers including Isaac Asimov and Theodore Sturgeon among its members. This episode stars Gene Lockhart.
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The third episode of the western series Jefferson Drum is broadcast on NBC in the United States, starring Jeff Richards as the titular old west newspaper editor. R.G. Armstrong guest stars in an episode written by future Star Trek creator Gene Roddenberry. 
The 119th episode of Rod Serling’s The Twilight Zone airs on CBS. Gladys Cooper and Wilfrid Hyde-White star.
The 25th episode of Doctor Who airs on the BBC. This is part five of the story now collectively known as 
Following two years of aborted or otherwise unsuccessful attempts to launch another robotic lunar lander toward the moon, the Soviet Union sends Luna 5 on its way. Intended to be an automated soft-landing mission, Luna 5 encounters major technical problems as it coasts from Earth to the moon. It does eventually reach the moon, but does so out of control and unable to brake for a survivable landing; the plume of material created by the impact of the 3,000-pound Luna 5 is large enough to be spotted from Earth-based telescopes for several minutes.
The 17th episode of Larry Cohen’s science fiction series The Invaders, starring Roy Thinnes and produced by Quinn Martin’s QM Productions, premieres on ABC. Ralph Bellamy (The Eleventh Hour, The Most Deadly Game) guest stars in an episode that concludes the series’ first season.
The 
NASA and JPL launch Mariner 8, the first of two identical “Mars ’71” orbiters designed to visit Mars. Where previous missions have simply flown past the red planet, Mariners 8 and 9 are intended to put themselves in orbit and remain there to map the majority of the Martian surface. The second stage of the Atlas-Centaur booster used to launch Mariner 8 fails, however, and the robotic Mars explorer crashes into the Atlantic Ocean. Some of its mission objectives are transferred to the identical Mariner 9, due for launch at the end of the month.
ITV airs the 54th episode of the anthology series Tales Of The Unexpected. John Mills guest stars.
Avalon Hill, a company best known for its boardgame and tabletop wargaming catalog, releases 
The week-long national syndication window opens for 
NBC airs the 30th episode of Donald Bellisario’s science fiction series Quantum Leap, starring Scott Bakula and Dean Stockwell. Susan Diol guest stars in the second season finale.
The ninth episode of RoboCop: The Series airs in syndication, starring Richard Eden, Yvette Nipar, Blu Mankuma, and Andrea Roth. David Hemblen (Captain Power, Earth: Final Conflict) guest stars.
The week-long national syndication window opens for 
The week-long national syndication window opens for 
Showtime airs the 57th episode of The Outer Limits, a revival of the 1960s science fiction anthology series. Howard Hesseman (WKRP In Cincinnati) and Joshua Jackson (Fringe, Dawson’s Creek) guest star.
Fox airs the 46th episode of Tracy Torme’s alternate-universe science fiction series Sliders, starring Jerry O’Connell, Sabrina Lloyd, Cleavant Derricks, and Kari Wuhrer. Neil Dickson (She-Wolf Of London) and Tommy Chong guest star.
The 138th episode of Chris Carter’s modern-day science fiction series The X-Files airs on Fox, starring Gillian Anderson and David Duchovny. Robyn Lively guest stars.
The 76th episode of Joss Whedon’s supernatural series Buffy The Vampire Slayer, starring Sarah Michelle Gellar, airs on the WB network. James Marsters, Anthony Stewart Head, and Alyson Hannigan also star. David Boreanaz guest stars.
UPN broadcasts the fifth episode of the supernatural crime comedy series Special Unit 2, starring Michael Landes (Lois & Clark: The New Adventures Of Superman) and Alexondra Lee (Party Of Five).
UPN airs the 
Big Finish Productions 
Japan’s Institute of Space and Astronautical Science (ISAS), launches the unmanned Hayabusa space probe on a mission to gather material from asteroid 25143 Itokawa. Intended to reach Itokawa in two years, and then return the asteroid samples to Earth in 2010, Hayabusa will also attempt to drop a small rover on Itokawa’s surface and will test an ion engine propulsion system. The name “Hayabusa” – translating to “peregrine falcon” – is only bestowed upon the spacecraft once it reaches space; prior to that, Hayabusa is known by its engineering designation, MUSES-C. A few months after Hayabusa’s launch, ISAS itself is renamed JAXA (the Japanese Aerospace Exploration Agency).
ABC airs the 
Sci-Fi Channel airs the 
UK cable channel Disney XD airs the 
Big Finish Productions, under license from B7 Media, releases 
Rob Dougan releases 
The CW airs the 67th episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin. 
The 28th episode of the science fiction series The Expanse, based on the series of novels by James S.A. Corey (a pseudonym for writers Ty Franck and Daniel Abraham), is broadcast on cable channel Syfy.