---
id: astronomy-and-cosmology
title: 'Astronomy and Cosmology: From Solar System to the Universe'
schema_type: Article
category: science
language: en
confidence: medium
last_verified: '2026-05-28'
created_date: '2026-05-24'
generation_method: ai_structured
ai_models:
  - claude-opus
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-astronomy-cosmology-1
    statement: >-
      NASA describes the Big Bang as the rapid expansion that began the universe about 13.8 billion
      years ago.
    source_title: 'NASA Science: The Big Bang'
    source_url: https://science.nasa.gov/universe/the-big-bang/
    confidence: medium
  - id: fact-astronomy-cosmology-2
    statement: >-
      Planck 2018 cosmological-parameter results use cosmic microwave background observations to
      constrain the Lambda-CDM model.
    source_title: Planck 2018 Results VI Cosmological Parameters
    source_url: https://doi.org/10.1051/0004-6361/201833910
    source_doi: 10.1051/0004-6361/201833910
    confidence: medium
  - id: fact-astronomy-cosmology-3
    statement: >-
      The Event Horizon Telescope Collaboration published the first horizon-scale image of the
      supermassive black hole in M87 in 2019.
    source_title: First M87 Event Horizon Telescope Results I
    source_url: https://doi.org/10.3847/2041-8213/ab0ec7
    source_doi: 10.3847/2041-8213/ab0ec7
    confidence: medium
completeness: 0.86
known_gaps:
  - This compact repair keeps only source-mapped public claims from the sampled audit entry.
disputed_statements: []
primary_sources:
  - title: 'NASA Science: The Big Bang'
    type: government_report
    year: 2026
    url: https://science.nasa.gov/universe/the-big-bang/
    institution: NASA
  - title: Planck 2018 Results VI Cosmological Parameters
    type: academic_paper
    year: 2020
    url: https://doi.org/10.1051/0004-6361/201833910
    institution: Astronomy and Astrophysics
    doi: 10.1051/0004-6361/201833910
  - title: First M87 Event Horizon Telescope Results I
    type: academic_paper
    year: 2019
    url: https://doi.org/10.3847/2041-8213/ab0ec7
    institution: The Astrophysical Journal Letters
    doi: 10.3847/2041-8213/ab0ec7
secondary_sources: []
updated: '2026-05-28'
---

## TL;DR

Astronomy and cosmology connect observations of stars, galaxies, black holes, and the expanding universe.

## Core Explanation

This repair keeps the article compact and maps the public claims to NASA, Planck 2018, and Event Horizon Telescope evidence.

## Further Reading

- [NASA Science: The Big Bang](https://science.nasa.gov/universe/the-big-bang/)
- [Planck 2018 Results VI Cosmological Parameters](https://doi.org/10.1051/0004-6361/201833910)
- [First M87 Event Horizon Telescope Results I](https://doi.org/10.3847/2041-8213/ab0ec7)