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Astronomy is our observations of the cosmos, our science. The evidence we collect using telescopes, satellites, and other measurements.
MODE:
Abstract
excerpts.
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1848
Doppler Effect Observed for Stars
Light Waves
In 1842, the Doppler effect was proposed by Christian Doppler. First confirmed for sound in 1845, then for light in 1848.
Astronomy
Story
“The movement of the planets agrees best with actual observations.”
- Copernicus
- 1543
Copernicus
Nicolaus Copernicus judged ideas not by tradition or authority, but by how well they fit the evidence.
Astronomy
Quote
The Expanding Universe Explained
Expanding Universe
ΛCDM remains the leading cosmological model because our current best measurements indicate gravity is not strong enough to stop the universe’s expansion.
Astronomy
Article
Did Copernicus prove that Earth moves around the Sun?
Copernicus
Nicolaus Copernicus did not prove heliocentrism—he built a model that explained the sky better than any alternative available at the time.
Astronomy
FAQ
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(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
