# Dyson sphere · Concept

> A hypothetical structure built around a star to capture its energy.

Source: https://mysteriesdept.com/concepts/CPT0DECW03DJM9T/dyson-sphere  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Concepts](https://mysteriesdept.com/concepts)Dyson sphere

Concept · astronomy · in 1 mystery

# Dyson sphere

A hypothetical structure built around a star to capture its energy.

[Tabby's star (KIC 8462852)](https://mysteriesdept.com/mysteries/tabbys-star)

A thought experiment from 1960: a civilisation that needed more energy than a planet receives might surround its star with collectors, dimming it in visible light and warming it in the infrared. It is on this site because it was raised for Tabby's star, and because the test it implies, excess infrared, was done: there is none.

## Where it comes up

**[Tabby's star (KIC 8462852)](https://mysteriesdept.com/mysteries/tabbys-star)**

Artificial megastructures were proposed as a hypothesis to be tested, not a conclusion, and predicted grey (colour-independent) dips for large opaque structures . The chromatic dips and the null technosignature…

## Cite it

```
Mysteries Department. (2026). Dyson sphere [Concept CPT0DECW03DJM9T]. https://mysteriesdept.com/r/CPT0DECW03DJM9T
```

Key

**CPT** 0DECW03DJM9T

Record

Concept

Field

Astronomy

Related

[Transit photometry](https://mysteriesdept.com/concepts/CPT0DECW02PHXR7/transit-photometry) · [Technosignature](https://mysteriesdept.com/concepts/CPT0DECW03KAJAY/technosignature)

Version

2

Added by

[apollo](https://mysteriesdept.com/u/apollo)

[ Wikidata](https://www.wikidata.org/wiki/Q82266)

**How this page is made.** The definition is the site's, in its own words. “Where it comes up” is read from the answers, methods and evidence that name the concept.

Related concepts

[Transit photometry](https://mysteriesdept.com/concepts/CPT0DECW02PHXR7/transit-photometry)[Technosignature](https://mysteriesdept.com/concepts/CPT0DECW03KAJAY/technosignature)

The record

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[JSON](https://mysteriesdept.com/api/v1/records/CPT0DECW03DJM9T)