(You can also manually look up any other date, browse a year, or go through the whole timeline.)
Published On: April 25, 2019
The fifth episode of Jordan Peele’s revival of Rod Serling’s science fiction anthology series The Twilight Zone streams on CBS All Access. John Cho (Star Trek) and John Larroquette (Night Court) star.
This series is not yet fully chronicled in the LogBook. You could help change that.
Published On: April 25, 2018
The 26th 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.
The Expanse now streaming on Amazon Prime
Published On: April 25, 2017
The CW airs the 65th episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin.
This series is not yet chronicled in the LogBook. You could help change that.
Published On: April 25, 2002
Russia launches a short-term visiting crew to the International Space Station aboard Soyuz TM-34. This is the last Soyuz TM class vehicle to fly, with a newer version of the capsule, Soyuz TMA, scheduled to launch later in 2002. Russian cosmonaut Yuri Gidzenko, Italian astronaut Roberto Vittori, and South African space tourist Mark Shuttleworth comprise Soyuz TM-34’s crew, staying at the ISS for eight days. Like Dennis Tito before him, multi-millionaire and Linux developer Shuttleworth has paid for his own ride into space. This crew leaves the Soyuz TM-34 vehicle at the ISS, returning home aboard Soyuz TM-33.
Published On: April 25, 2001
UPN broadcasts the third 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). Dominic Keating (Star Trek: Enterprise) guest stars.
This series is not yet chronicled in the LogBook. You could help change that.
Published On: April 25, 2000
The 74th 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. Amber Benson guest stars.
This series is not yet chronicled in the LogBook. You could help change that.
Published On: April 25, 1999
The 136th episode of Chris Carter’s modern-day science fiction series The X-Files airs on Fox, starring Gillian Anderson and David Duchovny. Jesse L. Martin (Law & Order, The Flash) guest stars.
This series is not yet chronicled in the LogBook. You could help change that.
Published On: April 25, 1997
NOAA’s GOES-10 Geostationary Operational Environmental Satellite is launched from Cape Canaveral into a geosynchronous orbit to monitor weather patterns over the United States. GOES-10 suffers significant hardware issues upon reaching orbit, including the failure of sun-tracking sensors to orient its solar panels, and it will be over a year before it is pressed into operational service in the GOES-WEST orbit by the failure of GOES-9’s attitude control system. GOES-10 will operate there until 2006, when, upon the launch of GOES-11, it takes up a new position, GOES-SOUTH, monitoring South America and watching for Atlantic Ocean hurricane and tropical storm formation. It will be briefly moved back into the GOES-EAST orbit in late 2007, and with just enough maneuvering fuel left to boost it, it will finally be retired to the above-geostationary “graveyard” orbit in 2009.
Published On: April 25, 1983
Trying to join the ranks of game companies producing home computers, Mattel Electronics licenses a low-end computer from a Hong Kong manufacturer and releases it in the United States as the Aquarius home computer. The age of Aquarius is short-lived, however, as Mattel is incurring serious losses from slowing Intellivision sales, and the Aquarius computer quickly proves to be underpowered next to even its cheapest competitors (the Mattel programmers tasked with creating games and software for it refer to it as the “system for the ’70s”).
More about Aquarius in Phosphor Dot Fossils
Published On: April 25, 1952
The 30th 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 Raymond, Phillip Pine, and James Doohan (later to become Star Trek’s Scotty).
This series is not yet chronicled in the LogBook. You could help change that.
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
Support us through theLogBook’s affiliates
The CW airs the 36th episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Michael Bishop, and Alex Garfin. 
UK cable channel Disney XD airs the 11th episode of K-9. The Australian-made series features no Doctor Who-related characters other than K-9.
Sci-Fi Channel airs the 57th episode of Ronald D. Moore’s re-imagining of Battlestar Galactica. Richard Hatch guest stars.
ABC airs the 65th episode of the J.J. Abrams-produced series Lost. Byron Chung and Andrew Divoff guest star.
UPN airs the 166th episode of Star Trek: Voyager.
Pay cable channel Showtime airs the second movie-length episode of Lexx (under the alternate title “Tales From A Parallel Universe”). Tim Curry (The Rocky Horror Picture Show) guest stars. Ratings prove to be promising enough that two further movies are put into production.
Fox airs the 44th episode of Tracy Torme’s alternate-universe science fiction series Sliders, starring Jerry O’Connell, Sabrina Lloyd, Cleavant Derricks, and Kari Wuhrer. Randy Vasquez (JAG) guest stars.
The week-long national syndication window opens for the 172nd episode of Star Trek: The Next Generation. Armin Shimerman (Star Trek: DS9) guest stars.
The week-long national syndication window opens for the 40th episode of Star Trek: Deep Space Nine. Bernie Casey guest stars in an episode which introduces some of the background elements of the upcoming spinoff series Star Trek: Voyager.
The seventh episode of RoboCop: The Series airs in syndication, starring Richard Eden, Yvette Nipar, Blu Mankuma, and Andrea Roth.
The week-long national syndication window opens for the 22nd episode of Star Trek: The Next Generation. This marks the final appearance of Denise Crosby as series regular Lt. Tasha Yar; the actress has decided to move on to less limited roles. Crosby returns to TNG several times, and later hosts several documentaries on the Star Trek phenomenon.
Activision releases the Happy Trails cartridge for the Intellivision home video game system.
ITV airs the 52nd episode of the anthology series Tales Of The Unexpected. Toyah Wilcox guest stars in the fifth season finale, which is adapted from the winning story in an amateur writing contest in which it was up against 11,000 other entries.
The 270th episode of Doctor Who airs on the BBC. John Abineri and Ronald Allen guest star.
The 23rd episode of Doctor Who airs on the BBC. This is part three of the story now collectively known as The Keys Of Marinus. Geroge Colouris guest stars.
ABC airs the 89th episode of the supernatural anthology series One Step Beyond, hosted and directed by John Newland. André Morell (Quatermass And The Pit) guest stars.