Stargate SG-1 (1997–2007)
2 user

A Matter of Time 

Stargate Command opens a wormhole to a planet with a black hole in orbit.


Martin Wood


Brad Wright (developed for television by), Jonathan Glassner (developed for television by) | 2 more credits »

Watch Now

With Prime Video





Episode cast overview:
Richard Dean Anderson ... Colonel Jack O'Neill
Michael Shanks ... Dr. Daniel Jackson
Amanda Tapping ... Captain Samantha Carter
Christopher Judge ... Teal'c
Don S. Davis ... Major General George Hammond
Marshall R. Teague ... AF Colonel Frank Cromwell (as Marshall Teague)
Teryl Rothery ... Dr. Janet Fraiser
Tobias Mehler ... Lieutenant Graham Simmons
Colin Cunningham ... Major Paul Davis
Dan Shea ... Sgt. Siler
Biski Gugushe ... SF Guard
Kurt Max Runte ... Major Boyd
Jim Thorburn ... Watts


SG10 are on a planet when one of the binary stars becomes a black hole. They try to escape by dialing Earth, but fail to get back. The SGC sends a probe and sees the black hole, but then they find they cannot disengage the wormhole and the gravitational effects are starting to effect Earth. Written by Anonymous

Plot Summary | Add Synopsis

Plot Keywords:

ancient astronaut | See All (1) »


TV-PG | See all certifications »



USA | Canada



Release Date:

29 January 1999 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Stereo | Dolby Digital (Dolby 5.1)



Aspect Ratio:

16 : 9
See full technical specs »

Did You Know?


The prop used for the "shaped charge explosive" used to divert the wormhole and disconnect from the blackhole is actually a high fidelity woofer speaker. See more »


In scene 9, Stargate Command begins to experience the gravitational effects of a black hole located at the other end of the stargate's wormhole connection. This causes the stargate's event horizon puddle to rotate clockwise. However, this is a goof because, since the star-gate is located in the northern hemisphere, based upon the Coriolis force, the star-gate's puddle should be rotating counterclockwise. See more »


Colonel Frank Cromwell: Is that proper military terminology? What exactly does "funky" mean, Sergeant?
See more »


Featured in Stargate SG-1: Disclosure (2003) See more »


Main Title
Written by Joel Goldsmith and David Arnold
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

How to Do a Black Hole Right
27 January 2019 | by theredshirtwholivedSee all my reviews

I have to say, I was really impressed with the filming of the SG team attempting to escape the black hole at the beginning. It was a really good way to show the time dilation black holes produce, and it was also a heck of a way to build suspense. This episode still scares me (I watched it for the 1st time when I was ten and terrified of black holes), but I have to hand it to them on the portrayal of the science.

0 of 0 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 2 user reviews »

Contribute to This Page

IMDb Freedive: Watch Movies and TV Series for Free

Watch Hollywood hits and TV favorites for free with IMDb Freedive. Start streaming on IMDb and Fire TV devices today!

Start watching

Stream Trending Movies With Prime Video

Enjoy a night in with these popular movies available to stream now with Prime Video.

Start your free trial

Recently Viewed