Warning: Spoilers for Challengers of the Unknown #1
TheJustice Leagueis back as the premier team of the DC Universe, and they’re residing in arevamped Watchtowerthat’s teeming with advanced tech. Among these upgrades is a new form of transportation, courtesy of theFlash, that puts the Batmobile to shame. The Justice League now has access to the ultimate spaceship, and the Flash’s surprising addition makes it the fastest ship in DC lore.

InChallengers of the Unknown#1 by Christopher Cantwell, Sean Izaakse, Romulo Fajardo Jr., and Hassan Otsmane-Elhaou, Ace Morgan is enlisted by the Justice League to embark on a mission to Mars alongside Superman. To traverse space, Ace decides to pilot the Justice League’s newest spaceship: the JL-657.
The JL-657 is described as a"Speed Force-Augmented Turbo Thruster Control", which means it’s a ship that’s been enhanced with the Flash’s Speed Force - the source of his power.This super-powered rocket can move at the velocity ofDC’s fastest speedsters, and the Justice League has Flash to thank for their new ride.

Justice League’s “JL-657” Ship Uses the Speed Force to Achieve Super-Speed
The Flash’s Powers Grant the Justice League Their Fastest Vehicle Ever
The Justice League’s awesome new rocket combines theFlash’s powerswith technology to achieve more efficient space travel. When Ace prepares to fly the JL-657, Superman informs him that Batman and the Flash wouldn’t be thrilled if it broke, revealing that they were both involved in its creation. Batman has the resources and intellect to construct vehicles, hence hisvast supply of Batmobiles and planes, and Wally West has an engineering background as well. Of course, the main contribution is made by the Flash, who’s successfully modified the ship to be fueled by theSpeed Forceafter years of attempting this feat on a smaller scale.
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The JL-657 is the latest - and most impressive - in a long line of vehicles that the Flash has imbued with the Speed Force.In 2011’sThe Flash#10 by Geoff Johns and Francis Manapul, a future variant of the Flash rides aCosmic Motorcyclethat can travel across dimensions and through time thanks to his otherworldly power source. More recently, during theOne Minute Warevent, Wally gives acar its own Speed Force engine. Now, the Flash has perfected that design for the Justice League’s new ship, and he isn’t the only hero harnessing his powers to provide equipment for the team.

The Justice League Integrates Every Hero’s Powers to Into Its Inventions
From Membership Cards to Spaceships, The Justice League Is Built on Collaboration
InDC All In Special#1 by Scott Snyder, Joshua Williamson, Wes Craig, and Daniel Sampere, this collaborative approach to tech is introduced with the creation of theJustice League’s membership cards. These cards' hardware is first designed byDC’s smartest humans, including Batman and Ted Kord. They’re then charged with the Flash’s Speed Force, Green Lantern’s willpower, and various alien resources. Lastly, Wonder Woman and the Justice League Dark members channel magic into the cards. By involving everyone, theJustice Leagueensures that all heroes - from theFlashto underdogs like Blue Beetle - are key players in the development of technology.
Justice League
The Flash
The Flash is the superhero name given to the DC Comics character who utilizes unparalleled speed tied to a dimensional power known as the “speed force” to overwhelm their opposition. Premiering in 1939, the original Flash arrived as Jay Garrick. Still, it would be superseded by Barry Allen in popularity and featured status, but the Flash is one character that has met many of their alternate selves. The character is typically seen as a part of the Justice League in nearly all incarnations.
