"What kind of spaceship is that? Are aliens coming to Earth again?" The Flash stood up, staring intently at the spaceship that had appeared on the screen.
The Watchtower's radar had detected a rather dilapidated-looking saucer-shaped spaceship suddenly jumping out of space near Jupiter, roughly 630 million kilometers from Earth.
The Flash had encountered other alien enemies and friends both before and after the Justice League was established.
Superman was the most famous alien of them all—a Kryptonian.
Green Lantern had obtained an alien Green Lantern Ring and possessed the power to wield willpower.
The formation of the Justice League had also been inseparable from aliens.
The Justice League's first enemy had been Starro, a massive starfish-like extraterrestrial lifeform.
Starro roamed the stars in search of suitable environments for parasitism, using the parasitic spores it reproduced to control and enslave the native races there.
When it arrived on Earth, it caused enormous devastation and nearly turned the entire population of New York into its puppets.
Before the Justice League had even been formed, it was under Starro's threat that Wonder Woman, Aquaman, The Flash, Green Lantern, Superman, Batman, Steel Bone, and other superheroes had first assembled and joined forces to finally defeat it.
Then, at Superman's suggestion, the Justice League was founded under Superman's leadership to protect Earth.
The Justice League's specific purpose was to guard against immense forces, both on Earth and beyond it, that could bring destruction upon humanity.
"A Kryptonian spaceship!" Batman's expression changed beneath his cowl.
Batman had studied Superman's Kryptonian culture and Kryptonian technology in depth. The Kryptonian spaceship scanned on the screen looked as though it had been forcibly cobbled together. Its joints looked exactly like they had been fused by a Kryptonian using Heat Vision, making it far from aesthetically pleasing.
Moreover, through