Rare Earth¶
Ward, P. D., & Brownlee, D. (2000). Rare Earth: Why Complex Life Is Uncommon in the Universe.
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Anna Karenina Principle
- In astrobiology the Rare Earth hypothesis is the principle made cosmological
This sourceArgues complex life requires the simultaneous satisfaction of many independent astrophysical and geological conditions (orbital distance, plate tectonics, a stabilizing moon, a shielding giant planet, liquid water), the cosmological instance of conjunctive necessity.
Supported in partVerified against the publisher's abstract
The book's publisher abstract shows the Rare Earth argument resting on a bundle of astronomical conditions, but never names the Anna Karenina principle or conjunctive necessity.
“The simulations showed that rocky planets orbiting at the “right” distances from the central star are easily formed, but they can end up with a wide range of water content. Earth seems to be quite a gem—a rocky planet where not only can liquid water exist for long periods of time, but where water can be found as a heathy oceanful—not too little and not too much.”
- In astrobiology the Rare Earth hypothesis is the principle made cosmological
Verification¶
Does it exist? Not checked yet. This entry carries no identifier to resolve. It was extracted from the citation as written in the article, normalized, and deduplicated against the rest of the registry.
Does it back the claim? Read against the text for 1 of 1 citation: 1 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
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Links previously used in the corpus¶
Before the registry existed this work was also linked 1 other way.
Registry ID ref:1dac445a8360 · see in the full table