Carrying over 3,000 pounds of supplies for future station crews, Space Shuttle Atlantis lifts off on a ten-day mission to the International Space Station. The supplies include exercise equipment and general housekeeping gear; Atlantis boosts the still-under-construction vacant station’s orbit by 27 miles. Aboard Atlantis for her 20th flight are Commander James Halsell, Pilot Scott “Doc” Horowitz, and mission specialists Mary Ellen Weber, Jeff Williams, James Voss, Susan Helms and Yury Usachev.

The 201st episode of Chris Carter’s modern-day science fiction series The X-Files airs on Fox, starring David Duchovny, Gillian Anderson, Robert Patrick, and Annabeth Gish. This is the final episode of the series’ nine-year run on Fox, though the network will go on to revive it over a decade later.
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The 23rd episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin, airs on the CW. Victor Garber (Alias, Legends Of Tomorrow) and Wentworth Miller guest star in the first season finale.
The CW airs the 16th episode of Legends Of Tomorrow, starring Arthur Darvill, Brandon Routh, Caity Lotz and Victor Garber. This is the first season finale.