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Published On: April 16, 2019
The CW airs the 109th episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin. Robert Picardo (Star Trek: Voyager, Stargate Atlantis) guest stars.
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Published On: April 16, 2016
For the first time since the final Space Shuttle flights in 2011, a new habitation module is attached to the International Space Station. Brought to orbit via a recent Dragon unmanned cargo craft, the BEAM (Bigelow Expandable Activity Module), constructed by Bigelow Aerospace based on ideas studied by NASA in the 1990s, is a test of a reinforced, inflatible crew module for the station. (The inflation of the module will be accomplished via a supply of air built into the module itself.) Not to be inflated and occupied until May, BEAM will be studied for its resistance to solar radiation and micrometeroid impacts over a two-year period. Bigelow already has plans for an independent, commercial space station utilizing similar inflatible designs if BEAM’s tour of duty is a success, and has previously orbited testbed models of inflatible station modules.
Published On: April 16, 2014
The 42nd episode of Arrow, a modern-day reboot of DC Comics’ Green Arrow superhero starring Stephen Amell, airs on the CW. Summer Glau (Firefly, Terminator: The Sarah Connor Chronicles) and Caity Lotz (Mad Men, Legends Of Tomorrow) guest star.
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Published On: April 16, 2000
The 157th episode of Chris Carter’s modern-day science fiction series The X-Files airs on Fox, starring Gillian Anderson and David Duchovny. Dennis Boutsikaris guest stars.
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Published On: April 16, 1979
The tenth episode of the series Salvage 1 airs on ABC, starring Andy Griffith, Joel Higgins, and Trish Stewart. Richard Jaeckel (Spenser For Hire) and Ed Nelson (Peyton Place) guest star.
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Published On: April 16, 1972
NASA launches the Apollo 16 mission to the moon, lasting 11 days total. Astronauts John Young and Charlie Duke descend to the lunar surface in the lander Orion, while Ken Mattingly pilots the command/service module Casper in orbit. Again, a lunar rover is tucked into one side of the lunar module, allowing Young and Duke to reach distances of 16 miles from their landing site. They spend a total of 20 hours walking on the moon’s surface, collecting over 200 pounds of soil and rock samples from the Descartes highlands region.
This mission is dramatized in the Original Wives’ Club episode of HBO’s 1998 series From The Earth To The Moon.
Published On: April 16, 1961
British broadcaster ABC airs the seventh episode of Pathfinders To Venus, a follow-up series to Pathfinders In Mars, produced by future Doctor Who creator Sydney Newman. George Colouris and Gerald Flood (City Beneath The Sea) star; the script is written by Malcolm Hulke (Doctor Who) and Eric Paice (Star Maidens). Though the original master tape of this episode was later wiped for reuse, film recordings of all eight episodes will be recovered and released on DVD in the 21st century.
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Published On: April 16, 1955
The second episode of the syndicated science fiction Science Fiction Theatre premieres on stations across the U.S. Hosted by Truman Bradley, the episode stars Don DeFore and Warren Stevens.
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Chandrayaan-3 lands on the moon
Launched by ISRO (Indian Space Research Organisation) in July, the Chandrayaan-3 uncrewed lunar lander successfully touches down on the surface of the moon near the lunar south pole, the first human-made spacecraft to successfully land in that region. Pictures from the surface are transmitted back to Earth, though the lander's mission is to look for signs of subsurface water believed to be common in the shaded south pole region, a potentially vital resource for long-term human habitation of the moon. (This was the mission intended for the earlier, unsuccessful Chandrayaan-2 mission in 2018.) In accomplishing this feat, India becomes the fourth country to soft-land a payload on the lunar surface.
Ahsoka
Streaming service Disney+ releases the the first and second episodes of Dave Filoni's Star Wars: Ahsoka, starring Rosario Dawson and Natasha Liu Bordizzo. Following up on the events of Filoni's previous aniamted series, Star Wars: Rebels, the first two episodes also feature Mary Elizabeth Winstead (Scott Pilgrim Vs. The World), David Tennant (Doctor Who), Clancy Brown (Earth 2, Highlander), and the late Ray Stevenson. More about Ahsoka in the LogBook
Luna 25 mission ends
Russia's Luna 25 mission to the lunar south pole ends unsuccessfully when an engine burn intended to lower the vehicle's orbit around the moon into its final landing orbit goes awry. Luna 25 instead crashes into the moon as the result of the engine firing longer than expected. Contact with Luna 25 is not recovered following what the Russian space agency describes as an "abnormal situation". The mission was Russia's first attempt at a lunar landing in nearly 50 years.
Babylon 5: The Road Home
Warner Bros. releases the animated movie Babylon 5: The Road Home. direct to DVD, Blu-Ray, and digital. Written by series creator J. Michael Straczynski, and featuring surviving original series stars Bruce Boxleitner, Claudia Christian, Peter Jurasik, Bill Mumy, Tracy Scoggins, and Patricia Tallman, with new actors voicing other familiar characters from the series. More about Babylon 5 in the LogBook and theLogBook.com StoreBabylon 5 now streaming on Amazon Prime
Luna 25
Russia launches the Luna 25 uncrewed spacecraft on a mission to land near the south pole of the moon. This is the first mission in the Luna program, which has been dormant since the 1970s; if successful, the mission will be the first Russian soft-landing on the moon in almost 50 years. Much like India's Chanrayaan-3 mission, launched a few weeks earlier, Luna 25 is intended to search for signs of water in the shaded areas of the lunar south pole, which could be a necessary resource for future crewed missions and possible long-term habitation of the moon.
Galactic 02
Virgin Galactic launches the Galactic 02 suborbital spaceflight aboard the SpaceShipTwo-class VSS Unity. The flight is piloted by CJ Sturckow and Kelly Latimer, with Birgin Galactic's Beth Moses aboard as the astronaut instructor. The passengers are space tourists Jon Goodwin, Keisha Schahaff, and Anastatia Mayers. Goodwin is the first space traveler to fly after being diagnosed with Parkinson's Disease.
Chandrayaan-3
India launches the Chandrayaan-3 uncrewed lunar lander mission, expected to reach the moon in August after weeks of gradually increasing the vehicle's orbital altitude until it slips from Earth orbit into lunar orbit. The mission profile is very similar to that of the Chandrayaan-2 mission, which attempted to put a lunar lander named Vikram on the surface near the lunar south pole to look for signs of water.
Galactic 01
Virgin Galactic launches the Galactic 01 suborbital spaceflight aboard the SpaceShipTwo-class VSS Unity. The flight is piloted by Michael Masucci and Nicola Pecile, with Italians Walter Villadei, Pantaleone Carlucci, and Angelo Landolfi, and British citizen Colin Bennett, as the passengers. Some research objectives are carried out on this flight, which was delayed from a 2021 launch date.
Superman & Lois: What Kills You Only Makes You Stronger
The CW airs the 43rd episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. This is the third season finale; the CW announces that a shortened fourth season will be made, but will be the show's last. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Star Trek: Prodigy cancelled
Streaming service Paramount Plus abruptly announces that the animated series Star Trek: Prodigy, created by Dan & Kevin Hageman, will be leaving the service a week after the announcement, at the end of June. The second season, deep into the post-production process, will be completed, and an attempt will be made to sell both the first and second seasons to another distribution outlet (though, as with recent cancellations on other streaming services, there is also a possibility of the show being shelved entirely as a tax write-down). After the announcement that Star Trek: Discovery's upcoming fifth season will be its last, Prodigy is the second Star Trek series to be cancelled in 2023. (It is one of several shows to leave PAramount Plus on extremely short notice at the end of June.) More about Star Trek: Prodigy in the LogBook
Superman & Lois: Injustice
The CW airs the 42nd episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: Complications
The CW airs the 41st episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: Collision Course
The CW airs the 40th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Virgin Galactic Unity-25
Virgin Galactic launches the Unity-25 suborbital spaceflight aboard the SpaceShipTwo-class VSS Unity. Both crew and passengers are employees of Virgin Galactic, as this is effectively a proving flight following the Federal Aviation Administration's grounding of the Virgin Galactic fleet in 2021 after its first passenger flight. Pilots Michael Masucci and C.J. Sturckow are at the controls; Beth Moses, Luke Mays, Jamila Gilbert, and Christopher Huie are the passengers. Flights following this one will be designated "Galactic" followed by the flight number.
Superman & Lois: The Dress
The CW airs the 39th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
The Wonders Of The Universe
Dragon's Domain Records releases the soundtrack album The Wonders Of The Universe: Music From The Big Finish Space: 1999 Audio Dramas, collecting composer Joe Kraemer's music created for the Big Finish Productions audio drama reboot of Space: 1999, as both a download and a CD. More about Space: 1999 in the LogBook
Superman & Lois: Guess Who’s Coming to Dinner
The CW airs the 38th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: Forever And Always
The CW airs the 37th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Star Trek: Strange New Worlds Season 1 soundtrack
Lakeshore Records digitally releases an album of selections from JNami Melumad's soundtrack to the first season of the streaming series Star Trek: Strange New Worlds. More about Star Trek soundtracks in Music Reviews
Superman & Lois: Of Sound Mind
The CW airs the 36th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Star Trek: Picard Season 3 soundtrack
Lakeshore Records digitally releases an album of selections from Stephen Barton and Frederik Weidmann's soundtrack to the third and final season of the streaming series Star Trek: Picard. More about Star Trek soundtracks in Music Reviews
Superman & Lois: Head On
The CW airs the 35th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Tron: Identity soundtrack
Disney Music digitally releases an album of selections from Dan le Sac's soundtrack to the computer game Tron: Identity. More about game soundtracks in Music Reviews
Superman & Lois: Too Close To Home
The CW airs the 34th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: In Cold Blood
The CW airs the 33rd episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: Uncontrollable Forces
The CW airs the 32nd episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
Superman & Lois: Closer
The CW airs the 31st episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. This is the third season premiere. More about Superman & Lois in theLogBook.com StoreSuperman & Lois now streaming on HBO Max
The Mandalorian: Chapter 17
Streaming service Disney+ releases the the 17th episode of Jon Favreau's The Mandalorian, starring Pedro Pascal. Katee Sackhoff and Carl Weathers guest star in the third season premiere. More about The Mandalorian in the LogBook
Star Trek: Picard: Disengage
Streaming service Paramount Plus debuts the 22nd episode of Star Trek: Picard, starring Patrick Stewart, Michelle Hurd, and Jeri Ryan. Amanda Plummer, Michael Dorn, Jonathan Frakes and Gates McFadden guest star. More about Star Trek: Picard in the LogBook
Star Trek: Picard: The Next Generation
Streaming service Paramount Plus debuts the 21st episode of Star Trek: Picard, starring Patrick Stewart, Michelle Hurd, and Jeri Ryan. Jonathan Frakes and Gates McFadden (Star Trek: The Next Generation) guest star in the heavily hyped third season premiere, which promises to reunite the Star Trek: The Next Generation cast. More about Star Trek: Picard in the LogBook
Retrogram #9060: What Did You Do During The Syndication Wars?
theLogBook.com releases the 34th episode of the Retrogram podcast, hosted by Earl Green, covering the history of first-run syndication in American television as a prelude to Retrogram beginning to cover genre TV from the 1990s. [audio mp3="https://www.thelogbook.com/podcast/retrogram/retrogram_9060.mp3"] More about the Retrogram podcast here
Doctor Who: The Power Of The Doctor soundtrack
Silva Screen Records digitally releases an album of music from Segun Akinola's soundtrack to The Power Of The Doctor, the third of the 2022 Doctor Who "specials" starring Jodie Whittaker as the Doctor. The album will get a physical release the following month. More about Doctor Who soundtracks in Music Reviews
Doctor Who: Legend Of The Sea Devils soundtrack
Silva Screen Records digitally releases an album of music from Segun Akinola's soundtrack to Legend Of The Sea Devils, the second of the 2022 Doctor Who "specials" starring Jodie Whittaker as the Doctor. The album will get a physical release the following month. More about Doctor Who soundtracks in Music Reviews
Doctor Who: Eve Of The Daleks soundtrack
Silva Screen Records digitally releases an album of music from Segun Akinola's soundtrack to Eve Of The Daleks, the first of the 2022 Doctor Who "specials" starring Jodie Whittaker as the Doctor. The album will get a physical release the following month. More about Doctor Who soundtracks in Music Reviews
Retrogram #8347: The Day After The Day Of The Doctor
theLogBook.com releases the 33rd episode of the Retrogram podcast, hosted by Earl Green, covering the following shows from the week of November 20, 1983: TV movie: The Day After Terrahawks: The Gun Doctor Who: The Five Doctors Dungeons & Dragons: The Box [audio mp3="https://www.thelogbook.com/podcast/retrogram/retrogram_8347.mp3"] More about the Retrogram podcast here
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Syfy airs the 65th episode of the science fiction series Eureka, starring Colin Ferguson, Salli Richardson-Whitfield, and Joe Morton. Wil Wheaton (Star Trek: The Next Generation), Tembi Locke (Sliders), and Felicia Day (Mystery Science Theater 3000) guest star in the fifth season premiere.
The 702nd episode of Doctor Who (the fourth since the series’ revival) airs on BBC1. Annette Badland and Naoko Mori (Torchwood) guest star. This is the first half of the new series’ first two-part story.
The 45th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 84th episode of Gene Roddenberry’s Earth: Final Conflict, airs in syndication, starring Robert Leeshock, Jayne Heitmeyer, and Von Flores.
Sci-Fi Channel premieres the 35th episode of Lexx. 
Sci-Fi Channel premieres the fifth episode of Farscape. (Early episodes of this series are aired out of the producers’ preferred story order or, for that matter, production order.)
Sci-Fi Channel airs the 68th episode of the science fiction series Sliders, starring Jerry O’Connell, Cleavant Derricks, Kari Wuhrer, and Charlie O’Connell.
Sci-Fi Channel premieres the 23rd episode of Lexx. 
The 41st episode of Lois & Clark: The New Adventures Of Superman airs on ABC, starring Dean Cain and Teri Hatcher. Bruce Campbell, Barbara Bosson, and David Graf guest star.
Fox Network premieres the 21st episode of Alien Nation. Jonathan Brandis (seaQuest DSV) guest stars.
ITV airs the 71st episode of the anthology series Tales Of The Unexpected. Bernard Cribbins guest stars.
NBC airs the 33rd and final episode of Buck Rogers In The 25th Century.
MCA Records releases an LP of Stu Phillips’ soundtrack from Buck Rogers In The 25th Century (timed to coincide with the theatrical release of the pilot movie; the series won’t premiere until later in 1979). After going out of print, the LP becomes a much-sought-after collectors’ item, not receiving a release on CD until the 21st century.
The first episode of Terry Nation’s post-apocalyptic series Survivors, The Fourth Horseman premieres on the BBC. The series is heavily promoted in the UK press and, unusually for its time, is shot entirely on video with no filming employed for location scenes.
The 113th episode of Doctor Who airs on the BBC. This is part three of the story now collectively known as The Celestial Toymaker. This episode is missing from the BBC’s archives.