Episode 38 of "Stargate-SG1"
s02e16 A Matter Of Time
Title: A Matter Of Time
Original Air Date: 01/22/1999 on Syndication
Director: Martin Wood
Guest Stars: Marshall Teague (Colonel Frank Cromwell), Jim Thorburn (Watts), Dan Shea (Sgt. Siler), Kurt Max Rurte (Major Henry Boyd), Biskki Gugusher (SF Guard)
Plot Outline:
SG-10 is on a planet when its sun becomes a black hole, and the Stargate link back to Earth threatens to destroy first SGC and then the entire planet.