Exploring the post-apocalyptic ruins in the Horizon Forbidden West Burning Shores DLC presents players with atmospheric environmental puzzles and hidden secrets. During the main story quest Heaven and Earth, Aloy must crack a locked security door to access Walter Londra's private quarters inside an ancient observatory bunker. Deciphering the correct passkey can be tricky if you miss specific clues, but knowing the code allows you to progress smoothly without unnecessary delays.

Where to Find the Heaven and Earth Door Location

The locked door puzzle is located deep within the Griffith Observatory complex during the Heaven and Earth quest line. As Aloy explores the subterranean facility alongside her companion Seyka, she enters a large planetarium chamber filled with holographic displays. The locked doorway itself sits at the top of the stairs overlooking the room.

Before attempting to enter the combination, players must inspect the central console in the middle of the planetarium. Triggering the initial audio logs activates the interactive planetarium controls needed to investigate surrounding asteroids. Once the scene is set, you can either analyze each historical clue or head straight to the keypad up the stairs.

How to Solve the Asteroid Hologram Puzzle

To derive the passcode naturally, players need to use Aloy's Focus to scan specific asteroids across different timeline years. The first digit is found on asteroid Ophelia in the year 2050 by checking the flight number, which yields the number three. Rotating the globe to 2054 leads to asteroid Juliet, where scanning the mined platinum amount reveals the second digit, two.

Advancing the timeline to 2061 highlights asteroid Caliban, where reviewing the casualties from a tragic mining disaster gives the third digit, eight. Finally, tracking back to 2056 on asteroid Katherina shows that it took five years to strip the cobalt, providing the final digit. Combining these four recorded figures reveals the full sequence needed for the terminal.

The Direct Door Code Solution

If you prefer to bypass the scanning phase entirely, you can walk directly up to the door's security console. The required code to unlock the doorway is 3285. Inputting this four-digit combination instantly unlocks the door, granting immediate access to the inner living quarters and advancing your story objectives.

Entering the code correctly triggers the next phase of the mission, allowing Aloy and Seyka to investigate further narrative evidence. Bypassing the puzzle manually does not penalize your quest progress or rewards in any way. This makes direct input a practical option for players looking to streamline their adventure through the Burning Shores.