On this day in the Star Trek universe - The Next Generation:

Star Trek: The Next Generation (1993)

Star Trek: The Next Generation
Season 6. Episode 26.

Episode entitled: Descent.

Released June 21, 1993.

Directed by Alexander Singer.

Written by Ronald D. Moore, Jeri Taylor, Brannon Braga, René Echevarria, Naren 

Shankar.

Created by Gene Roddenberry.

Music by Jay Chattaway.

Cast: Patrick Stewart, Jonathan Frakes, LeVar Burton, Michael Dorn, Gates McFadden, Marina Sirtis, Brent Spiner, John Neville, Jim Norton, Natalija Nogulich, Brian J. Cousins, Professor Stephen Hawking, Richard Gilbert-Hill, Stephen James Carver, David Keith Anderson, Majel Barrett, Joe Baumann, Christine Anne Baur, Pam Blackwell, Cameron, Tracee Cocco, Gerard David Jr., Debbie David, Jonathan Del Arco, Grace Harrell, Gary Hunter, Ken Lesco, Dennis Madalone, Tom Morga, Geoffrey Mutch, Mark Riccardi, Joyce Robinson, Dee Giffin Scott, Sissy Sessions, Adrian Tafoya, John Alex Tampoya, Oliver Theess, Curt Truman, Guy Vardaman, Rogan Wilde, Vaun Wilmott.