This region of SCP-2917's file is to be used to describe exploration of notable planets with which SCP-2917 has connected.

06/25/19██

Subject: One Class-D, D-3612, equipped with an Environmental Protection suit, modified as described above.

Destination: SCP-2917 opened to an underground cavern dimly lit by narrow, glowing blue streams along the walls and floor. The walls are lined with small, dark-blue crystals. A yellow light is visible down one of the corridors.

Log: After decontamination, D-3612 crosses the SCP-2917 boundary as expected, and is first ordered to take samples of the luminescent fluid and crystals around the cavern. Once this is complete, she is ordered to proceed in the direction of the yellow light and identify its source if possible. As the cavern slopes uphill, the temperature begins to rise at a rate of roughly 3°C for every meter of altitude gained. Once the temperature rises above 50°C with the end of the corridor still >100 m away, D-3612 is ordered to turn back, and is able to return to Earth without incident.

Analysis: Fluid samples recovered by D-3612 during this exploration were found to consist of a naturally occurring luminol solution, activated by dissolved Copper (II) Sulfate from the Chalcanthite crystals found on the cavern walls. It is thought that the source of the increasing heat was a high temperature at the planet's surface caused by proximity to its parent star.

07/10/19██

Subject: One Class-D, D-4920, equipped with an Environmental Protection suit, modified as described above.

Destination: A sandy desert, visible to the horizon on one side and broken up by narrow towers of metallic cubic crystals on the other. 0.5 m - 1 m wide blocks of a similar metal protrude from the sand. A pale pink sky is visible above, with a cratered moon directly overhead, occupying roughly 45° in angular size.

Log: D-4920 crosses the SCP-2917 boundary as expected, and is ordered to examine the metallic objects embedded in the sand. He discovers that they are fixed in place, and strong enough that a sample cannot be removed. D-4920 is then ordered to move towards the structures visible in the distance. After several minutes of travel, D-4920 reports that the spires appear to be approaching - they are larger and closer than at the time of departure. It is at this time that researchers on earth notice that the sand on the planet appears to be receding at a small, but steadily increasing rate. D-4920 is ordered to return to Earth. During the return trip, the objects in the sand are noticeably taller, and the ground is beginning to visibly shift. At this time, the lowest point of SCP-2917 is 1 meter above the surface of the sand.

At this point it becomes apparent that the blocks in the sand are in fact the same objects as the distant spires, and that they are simply covered up by the sand in this location. The sand begins to recede more quickly, and D-4920 takes refuge on top of one of the emerging crystals. When the phenomenon stops, the surface of the sand is nearly 20 m below its original position. D-4920 is then able to climb down the spire and navigate the 'forest' of towers that have been exposed. He has traveled significantly closer to SCP-2917 when the sand begins to rise once more, filling in the space between the spires. D-4920 is forced to climb one of the objects or risk being buried beneath the encroaching sand, and manages to reach the top of the tower. At this point he is ordered to wait for the sand to return to its original location before attempting to return home. Once this has happened, D-4920 is able to cross the SCP-2917 boundary successfully.

Analysis: It has been suggested that the rapid retreat and return of the sand is a result of tidal forces, magnified by the proximity of the planet's moon. This hypothesis is supported by comparisons of the moon's position in the sky with the level of the sand's surface.

07/14/19██

Subject: One (1) Class D, D-9572, equipped with a standard Environmental Protection suit. Destination: Unlike the barren surface of all previous locations, this world sustains life - the anomaly opens to a forest filled with 20-30m blue and orange bioluminescent organisms superficially resembling trees. It is nighttime, and Barnard's Loop is visible in the sky, with an angular diameter of ~30 degrees. Log: D-9572 is ordered to move through SCP-2917, and complies with some hesitation. D-9572 begins moving between the "trees" with orders to locate high ground and survey the area. After ~30 minutes of travel, with no noticeable change in elevation or terrain grade, D-9572 is ordered to climb one of the "trees" that surround him. Upon reaching the highest stable point he can reach, D-9572 reports that there is no noticeable variation in terrain, or change in elevation, for the entire distance to the horizon. It is at this point that researchers on Earth notice a disturbance in the forest - followed shortly by the arrival of five cephalopod-like organisms. The organisms approached SCP-2917, and appeared to charge at the researchers visible through it. A single creature traveled through the anomaly, triggering relocation event 2917-315. D-9572 is left behind, and contact is lost. Analysis: This expedition marks the first instance in which SCP-2917 has connected to a planet supporting life. The animal that penetrated SCP-2917 was incapable of breathing air on Earth, and quickly asphyxiated. Its dissection revealed similar body chemistry and organ structures to reptilian lifeforms, rather than the cephalopods it superficially resembled. Given the potential for a breach were a larger or more dangerous animal to exit the anomaly, containment procedures have been amended.

07/21/19██