Giant Lizard on TOI-715 b | ESO Transmission #25.1
Recovered archive from ESO Exploratory Space Organization.
Mission Transmission #25 documents another surface operation conducted by the ESO Exploratory Space Organization, humanity's leading interstellar exploration agency responsible for surveying potentially habitable exoplanets across nearby star systems.
Unlike early exploration programs, ESO missions routinely deploy astronauts onto alien worlds after extensive orbital reconnaissance. Numerous expeditions have already confirmed the existence of extraterrestrial plants, unfamiliar ecosystems, and a wide range of alien animal species inhabiting distant rocky planets.
The twenty-fifth planetary expedition targeted TOI-715 b, a rocky exoplanet located approximately 137 light-years from Earth. Previous astronomical observations suggested the planet could contain stable environmental conditions suitable for long-term scientific research.
Veteran astronaut David Morgan, an elite exploration specialist and military operative assigned to ESO's Deep Frontier Division, was selected once again to perform the solo landing. Having completed numerous successful planetary descents throughout his career, David was considered the agency's most experienced surface explorer.
The information recorded after landing, however, differed significantly from predictions made before the mission.
Recovered Landing Footage — TOI-715 b
Landing Report — Surface Conditions
David Morgan successfully landed inside Survey Sector B-4 at 08:12 UTC according to ESO mission records.
The first visual inspection immediately challenged previous scientific expectations. Rather than finding broad plains covered with vegetation or visible lakes, the astronaut encountered an immense landscape dominated by fractured stone fields and towering rock formations stretching beyond sensor range.
No rivers, oceans, or surface lakes could be observed from the landing zone.
Even so, geological scanners detected several regions where moisture had slowly seeped upward through cracks beneath the rocky terrain, indicating that underground water reservoirs might still exist deep below the surface.
The atmosphere presented another surprise.
Above the endless stone desert, the sky glowed with an unusual bright green color while scattered white cloud formations drifted across the horizon, a phenomenon that reminded several researchers of the grass glows in TOI-700 d documented during previous exoplanet observations.
Environmental scanners measured approximately 2% atmospheric oxygen, confirming that TOI-715 b remained unbreathable for humans without full life-support equipment.
"Orbital models underestimated the surface. It's much harsher than expected, but something is still happening beneath these rocks."
— David Morgan, Surface Log #025-01
Unexpected Wildlife Encounter
Approximately forty-three minutes after leaving the landing module, David's bioscanner registered heavy ground vibrations approaching from the eastern ridge.
Thermal imaging initially suggested a single moving organism of extraordinary size.
Moments later, the creature became visible.
ESO classified the organism as a massive reptilian lifeform resembling an enormous terrestrial lizard. The animal measured roughly the length of a modern passenger vehicle and moved across the rocky landscape with surprising speed despite its tremendous weight.
Its body was covered in thick mineral-colored scales that blended almost perfectly with the surrounding cliffs, making visual detection extremely difficult until it entered open terrain.
Although previous ESO expeditions had documented countless alien species across different planetary systems, no known reptilian organism in the agency's archives matched the physical characteristics recorded on TOI-715 b.
Defensive Response
As David continued recording the animal, onboard threat assessment software suddenly upgraded the encounter from passive observation to an active hostile event.
The creature accelerated directly toward the astronaut.
Automatic warning systems immediately instructed David to abort the survey and retreat.
Rather than engaging the animal, he followed established ESO survival protocols and sprinted back toward the landing capsule.
Seconds before impact range, the capsule's armored defensive shell sealed automatically while external cameras continued monitoring the aggressive reptile outside.
The giant lizard repeatedly struck the outer hull before eventually losing interest and disappearing among the surrounding rock formations.
"It wasn't hunting out of curiosity. It wanted me away from that area."
— David Morgan, Emergency Log #025-04
Mission Status
No damage was reported to the landing capsule, and David Morgan remained unharmed throughout the encounter.
Following the incident, ESO Mission Control suspended long-range exploration until additional reconnaissance drones could map the surrounding territory and determine whether other giant reptilian organisms inhabited the region.
Scientists now believe that the seemingly barren world of TOI-715 b may support a hidden ecosystem beneath its rocky surface, with large predators adapted to survive in an environment where liquid water remains concealed underground.
Transmission #25.1 concludes with one recommendation from Mission Control:
Never assume a silent planet is an empty one.
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