Related to astronomical observatory complex

The Portal Is Opening

1600 × 1200

Person in Diving Suit — Blue, Dramatic, Night

1920 × 1080

Black Mesa Logo — Neutral

1280 × 1024

White observatory building

1024 × 683

Giant Alien Organism

2414 × 1414

Man on a Screen — Blue

1920 × 1080

Man on Holographic Screen

1920 × 1080

Man on Large Screen

1680 × 1050

Soldier overlooking jungle base

800 × 637

Large scientific research chamber

2048 × 1536

particle accelerator facility

2100 × 1358

Star trails over observatory dome

1920 × 1080

Particle Accelerator Detector — Cyan

1250 × 773

Particle Accelerator Detector — Orange, Technical, Photograph, Circular Structure, Electronic Components

2000 × 1339

ancient forest observatory

3000 × 2303

Particle Accelerator Detector — Blue, Industrial

3008 × 1960

Particle Accelerator Detector — Orange, Technical, Photograph, Circular Structure

3872 × 2592

Particle Accelerator Detector — Green

1600 × 1000

Telescope at Dusk

2048 × 1536

Radio Telescope under Stars — Black

1920 × 1200

Large Radio Telescope

2560 × 1600

Observatory above the clouds

1920 × 1200

Radio telescope under stormy sky

2272 × 1704

Drive-in Movie Screen — Gray, Dramatic

1728 × 1080