Unverified50% confidenceFactExact time
The Birch Planet is an extreme megastructure concept proposed in science fiction and futurology, referring to an ultra-large habitation structure composed of multiple layers of orbital shells with a black hole as the gravitational anchor and energy core.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedQuasars are generally considered to be active galactic nuclei driven by supermassive black holes accreting matter and releasing enormous energy.69% similarUnverifiedDark matter provides additional gravitational force that keeps galactic rotation speeds far exceeding what visible matter can account for, thereby maintaining the structural stability of galaxies.62% similarUnverifiedThe program argues that planets are not the primary resource, and that stars are the main source of energy for civilizations.58% similarUnverifiedThe core challenge of directly imaging exoplanets is that a star's brightness is often billions of times that of its planets.58% similarUnverifiedSagittarius A* is the supermassive black hole at the center of the Milky Way, about 4.3 million times the mass of the Sun, whose position was first confirmed by radio astronomical observations in 1974.56% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1038266API
curl https://kongchang.com/api/v1/knowledge/claims/1038266MCP
get_claim(id=1038266)