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 9.

Episode entitled: The Measure of a Man.

Released February 11, 1989.

Directed by Robert Scheerer.

Written by Melinda M. Snodgrass, Leonard Mlodinow, Scott Rubenstein.

Created by Gene Roddenberry.

Music by Ron Jones.

Cast: Patrick Stewart, Jonathan Frakes, LeVar Burton, Michael Dorn, Marina Sirtis, Brent Spiner, Wil Wheaton, Colm Meaney, Diana Muldaur, Whoopi Goldberg, Majel Barrett, Amanda McBroom, Clyde Kusatsu, Brian Brophy, Michael Braveheart, Denise Crosby, Victor Paul.

Star Trek: Voyager

Season 4. Episode 15.

Episode entitled: Hunters.

Released February 11, 1998.

Directed by David Livingston.

Created by Rick Berman, Michael Piller, Jeri Taylor.

Written by Jeri Taylor, Bryan Fuller, Lisa Klink.

Based on Star Trek, created by Gene Roddenberry.

Music by Jay Chattaway.

Cast: Kate Mulgrew, Robert Beltran, Roxann Biggs-Dawson, Robert Duncan McNeill, Ethan Phillips, Robert Picardo, Tim Russ, Garrett Wang, Jeri Ryan, Tiny Ron, Roger W. Morrissey, Majel Barrett, Christine Delgado, Tarik Ergin, Linda Harcharic, Kerry Hoyt, Alicia Lewis, Guy Richardson, Pablo Soriano.

Star Trek: Enterprise

Season 3. Episode 15.

Episode entitled: Harbinger.

Released February 11, 2004.

Directed by David Livingston.

Written by Manny Coto, Rick Berman, Brannon Braga, 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 Velton Ray Bunch.

Cast: Scott Bakula, John Billingsley, Jolene Blalock, Dominic Keating, Anthony Montgomery, Linda Park, Connor Trinneer, Noa Tishby, Thomas Kopache, Steven Culp, Alexandrea Ortiz, Solomon Burke Jr., Evan English, Duncan K. Fraser, Hilde Garcia, Scott Sterling Hill, Yoshio Iizuka, John Jurgens, Andrew Macbeth, Dorenda Moore, Aric Rogokos, Paul Sklar, Chris Torres, Jeff Wolfe.

Star Trek: Enterprise

Season 4. Episode 14.

Episode entitled: The Aenar.

Released February 11, 2005.

Directed by Michael/Mike Vejar.

Written by André Bormanis, Manny Coto.

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, Jeffrey Combs, Alexandra Lydon, Brian Thompson, Geno Silva, Alicia Adams, Scott Rinker, Alexandrea Ortiz, Nathan Effron, Evan English, J. Michael Flynn, Duncan K. Fraser, Glen Hambly, John Jurgens, Marti Matulis, Guy Richardson.

Star Trek: Discovery

Season 1. Episode 15.

Episode entitled: Will You Take My Hand?

Released February 11, 2018.

Directed by Akiva Goldsman.

Created by Bryan Fuller, Alex Kurtzman.

Written by Gretchen J. Berg, Aaron Harberts, Akiva Goldsman, 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, Mia Kirshner, Jayne Brook, Mary Chieffo, James Frain, Clint Howard, Michael Ayres, Matthew Binkley, Emily Coutts, Riley Gilchrist, Anthony Grant, Julianne Grossman, Harry Judge, Morgan Kohan, Patrick Kwok-Choon, Crystal Leger, Clare McConnell, Damon Runyan, Sara Mitich, Oyin Oladejo, Ronnie Rowe, David Benjamin Tomlinson, Bree Wasylenko, Adam Winlove-Smith.