On this day in the Star Trek universe:

Star Trek: The Next Generation (1989)

Star Trek: Voyager (1998)

Star Trek: Enterprise (2004 & 2005)

Star Trek: Discovery (2018)

Star Trek: The Next Generation

Season 2. Episode 6.

Episode entitled: The Schizoid Man.

Released January 21, 1989.

Directed by Les Landau.

Written by Tracy Tormé, Richard Manning, Hans Beimler, Leonard Mlodinow, Scott Rubenstein.

Created by Gene Roddenberry.

Music by Dennis McCarthy.

Cast: Patrick Stewart, Jonathan Frakes, LeVar Burton, Michael Dorn, Marina Sirtis, Brent Spiner, Wil Wheaton, Diana Muldaur, William Morgan Sheppard, Suzie Plakson, Barbara Alyn Woods, Rachen Assapiomonwait, Michael Braveheart, Dexter Clay, Denise Crosby, Randy James, Scott Leva, Lorine Mendell, Guy Vardaman.

Star Trek: Voyager

Season 4. Episode 14.

Episode entitled: Message in a Bottle.

Released January 21, 1998.

Directed by Nancy Malone.

Created by Rick Berman, Michael Piller, Jeri Taylor.

Written by Lisa Klink, Rick Williams, Bryan Fuller.

Based on Star Trek, created by Gene Roddenberry.

Music by Paul Baillargeon.

Cast: Kate Mulgrew, Robert Beltran, Roxann Biggs-Dawson, Robert Duncan McNeill, Ethan Phillips, Robert Picardo, Tim Russ, Garrett Wang, Jeri Ryan, Judson Scott, Valerie Wildman, Andy Dick, Tony Sears, Tiny Ron, Majel Barrett, John Austin, Lynne Burnett, Dianne Harper, Todd Leatherbury, Angus McLellan, Joey Sakata.

Star Trek: Enterprise

Season 3. Episode 13.

Episode entitled: Proving Ground.

Released January 21, 2004.

Directed by David Livingston.

Written by Chris Black, André Bormanis.

Created by Rick Berman, Brannon Braga.

Based on Star Trek, created by Gene Roddenberry.

Opening theme song: Faith of the Heart, performed by Russell Watson.

Closing theme: Archer's Theme, by Dennis McCarthy.

Music by John Frizzell.

Cast: Scott Bakula, John Billingsley, Jolene Blalock, Dominic Keating, Anthony Montgomery, Linda Park, Connor Trinneer, Molly Brink, Randy Oglesby, Scott MacDonald, Tucker Smallwood, Rick Worthy, Granville Van Dusen, Jeffrey Combs, Josh Drennen, Alexandrea Ortiz, Mark Correy, Evan English, Hilde Garcia, Glen Hambly.

Star Trek: Enterprise

Season 4. Episode 11.

Episode entitled: Observer Effect.

Released January 21, 2005.

Directed by Michael/Mike Vejar.

Written by Garfield Reeves-Stevens, Judith Reeves-Stevens.

Created by Rick Berman, Brannon Braga.

Based on Star Trek, created by Gene Roddenberry.

Opening theme song: Faith of the Heart, performed by Russell Watson.

Closing theme: Archer's Theme, by Dennis McCarthy.

Music by Kevin Kiner, Dennis McCarthy.

Cast: Scott Bakula, John Billingsley, Jolene Blalock, Dominic Keating, Anthony Montgomery, Linda Park, Connor Trinneer, Alexandrea Ortiz, Solomon Burke Jr., Evan English.

Star Trek: Discovery

Season 1. Episode 12.

Episode entitled: Vaulting Ambition.

Released January 21, 2018.

Directed by Hanelle M. Culpepper.

Created by Bryan Fuller, Alex Kurtzman.

Written by Jordon Nardino, Bo Yeon Kim, Erika Lippoldt, Kirsten Beyer, Sean Cochran.

Based on Star Trek, created by Gene Roddenberry.

Music by Jeff Russo.

Cast: Sonequa Martin-Green, Doug Jones, Shazad Latif, Anthony Rapp, Mary Wiseman, Jason Isaacs, Michelle Yeoh, Mary Chieffo, Wilson Cruz, Sam Asante, Jeremy Crittenden, Raven Dauda, Billy MacLellan, Dwain Murphy, Tasia Valenza, Marie Ward, Marco Perretta, Clayton Scott.