---
title: "Vantablack prompts Reddit user to recall Bob Lazar documentary"
url: "https://usubjects.com/article/vantablack-prompts-reddit-user-to-recall-bob-lazar-documentary-3984"
updated: "2026-10-06T16:04:55.583Z"
description: "A Reddit user says learning about Vantablack, a light-absorbing material, reminded them of Bob Lazar’s descriptions of the interior of an alleged craft. They shared a video explaining the material, but provided no evidence linking Vantablack to UFOs or Lazar’s claims."
sources: ["https://youtu.be/JoLEIiza9Bc?si=HNfiU4MfC6jR2mmP"]
licence: "All rights reserved"
---

# Vantablack prompts Reddit user to recall Bob Lazar documentary

Published: 2026-10-06  
Source: [r/UFOs](https://youtu.be/JoLEIiza9Bc?si=HNfiU4MfC6jR2mmP)

### Overview

A Reddit discussion about **Vantablack**, a material known for absorbing nearly all visible light, has prompted one user to revisit descriptions attributed to Bob Lazar about the interior of an alleged extraterrestrial craft. The user shared a video from *The Action Lab*, a science-focused YouTube channel, after noting that the material’s unusually dark appearance resembled Lazar’s accounts of a seemingly lightless interior.

The comparison remains speculative. **No evidence links Vantablack, the demonstration featured in the video, or any similar light-absorbing technology to Lazar’s claims or to unidentified aerial phenomena.** The video itself presents a conventional optics experiment based on established physics rather than evidence of extraterrestrial materials.

### Demonstration of an Extremely Dark Surface

The experiment compares several forms of black material, including a standard Sharpie marker, a high-pigment product known as Black 2.0, and a homemade object designed to absorb reflected light. Vantablack, used as a benchmark, is commonly reported to absorb approximately **99.965% of visible light**.

Under a 32,000-lumen flashlight, the marker and painted surface became visibly reflective, appearing gray or white on camera. By contrast, the homemade object remained a featureless, deep-black opening. The creator also directed a 5-watt blue laser at the object. Unlike an ordinary surface, it did not produce an obvious visible spot, suggesting that very little of the laser light was reflected back toward the camera.

Using a luminance-measurement application, the creator estimated that the object absorbed approximately **99.992% of incoming light**. Such measurements depend on the testing setup and equipment, but the result illustrates how geometry can significantly reduce visible reflection.

### The Physics of a “Black Body”

The object was not a newly developed coating or an exotic material. It was a small hole cut into a cardboard box whose interior had been painted black. The design creates a cavity in which incoming light undergoes repeated reflections from the dark internal walls. With each reflection, some of the light is absorbed, leaving very little energy able to escape through the opening.

The setup approximates the concept of a **black body**, an idealized object that absorbs all electromagnetic radiation that reaches it. The video references physicist Gustav Kirchhoff, who identified a small aperture in a cavity as one of the most practical approximations of a perfect black body. In this case, the apparent darkness comes primarily from the cavity’s structure rather than from the paint alone.

### Relevance to UFO Claims

The demonstration also addresses a central feature of black-body physics: an ideal absorber must also be an efficient emitter of radiation. Under thermodynamic principles, an object that absorbed energy perfectly but emitted almost none would continue heating without reaching equilibrium. In reality, heated objects radiate energy according to their temperature, producing the spectrum described by blackbody radiation.

That principle is fundamental to modern physics and helps scientists analyze radiation from stars, including the Sun. While the Reddit user’s association with Lazar’s documentary reflects a cultural connection between extreme darkness and alleged craft interiors, **the video provides a lesson in optics and thermodynamics—not confirmation of UFO technology or Lazar’s testimony**.

## Provenance

This USUBJECTS page is a summary or digest of the linked original source. Any accompanying generated visual is an illustrative reconstruction, not evidence.