While it is certainly true that time slows down near a black hole, the episode has many scientific flaws (more than should be expected of a science fiction show). For one, the only way for the sun to become a black hole would be for it to go supernova, which would wipe the solar system out very rapidly; there's no way they would have time to get to the gate. Besides that, the gravitational pull of a black hole is not stronger than that of its progenitor star, so if these effects happened after the sun turned into a black hole, they should have happened before that as well.
Trivia: Sergeant Siler gets electrocuted in this episode while tripping the main breaker to the Stargate, marking the first of many times Siler has an accident or injury.
Carter reveals in the third episode of season one, "The Enemy Within," that if an iris does not hold, a failsafe destroying the mountain will activate. However; this episode contradicts that statement.
Trivia: Jack spent four months in an Iraqi prison after being wounded and thought dead by Cromwell.
Trivia: Another location mentioned is P2A-870.
Trivia: Daniel is on a dig on P3X-808.
Trivia: A trinium-strengthened iris is installed after this episode.
Trivia: You can find the address to P3W-451 and many other planets here.
Trivia: We learn its possible to have a wormhole open longer than 38 minutes under certain circumstances.
Trivia: Colonel Cromwell's code to set the auto-destruct was 10432772.
In the first 6 minutes that the MALP was on P3W-451 the SGC received 11 frames of video, less than one second's worth. Yet the camera on the MALP responded immediately to pan upward to view the black hole, a process taking several seconds.
When dialing to P3W-451, the computer displayed the Chulak coordinates.
When dialing back to P3W-451, one computer monitor's screen wasn't dialing but you could hear the gate dialing.
Colonel Cromwell called a Senior Airman "sergeant".
SG-10 was wearing OD green uniforms on their mission on P3W-451 but it was clearly a desert planet and they do have desert camouflage.
(looking at a video feed)
Cromwell: Who's this?
Jack: Henry Boyd. Good officer: smart. Kinda reminds me of Carter a little bit. This was their first mission as a team.
Cromwell: He looks scared to death.
Jack: He's on a planet that's about to be swallowed up by a black hole... and he knows it.
Jack: You just came from Washington, sir?
Hammond: There and back again, after someone upstairs managed to explain what was going on to me, we called an all-night session with the President and the Joint Chiefs. I've been gone nearly eighteen hours.
Jack: I thought you were on the phone...
Cromwell: We used to be friends, Jack.
Cromwell: I was sick to my stomach when I found out you were still alive. I wanted to go back for you.
Jack: Why don't we just do this and get the hell out of here, all right?
Cromwell: Somebody dropped a dime on the incursion. You got hit, you went down. I made a judgment call to save the rest of the team.
Jack: And I saw you take off. And then I saw four months of my life disappear in some stinking Iraqi prison.
Cromwell: I thought you were dead!
Jack: You thought wrong! What do you want? You want me to forgive you, is that it?
Cromwell: Yeah, I guess I do.
Jack: Well, that's tough. What happened to "nobody gets left behind"?
Sam: Well, sir, accounting for time spent coming and going, I would guess that time within the SGC facility has slowed to an average of about 600 percent below normal. When you ordered Colonel O'Neill to wait 5 minutes, you were really telling him to wait 6 hours, maybe more.
Hammond: Captain, relativity gives me a headache.
Jack: Look, I know I should know this by now. I swear it'll be the last time I ask. These wormholes we go through, they're not always there, right?
Sam: No, sir. It can only form between two open gates.
Jack: What's with the worm part? The worm thing. I...I don't get that.
Sam: That's just a metaphor.
Jack: Right. I knew that.
Cromwell: (under increased gravity) I feel like I've put on a hundred pounds!
Jack: I wasn't gonna say anything.
Cromwell: (about Sam) Man, she's...
Jack: ...way smarter than we are.
Jack: Well, we dialed it to a planet that's being sucked into a black hole. Very bad, very dangerous.
Cromwell: Why is that?
Jack: Things tend to get sucked in...
Michael Shanks appears only at the very end of this episode.
First appearance of Major Paul Davis, played by Colin Cunningham.
Syndication air date: February 7, 2000.