Giant-impact hypothesis
id:
giant-impact-hypothesis-183-12008586
title:
Giant-impact hypothesis
text:
The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian geologist Reginald Daly. The hypothesis suggests that the Early Earth collided with a Mars-sized protoplanet of the same orbit approximately 4.5 billion years ago in the early Hadean eon, and the ejecta of the impact event later accreted to form the Moon. The impactor planet is sometimes called Theia, named after the mythical Greek Titan w
brand slug:
wiki
category slug:
encyclopedia
description:
Hypothesis of the formation of the Moon
original url:
https://en.wikipedia.org/wiki/Giant-impact_hypothesis
date created:
2002-05-02T21:29:30Z
date modified:
2024-09-06T22:24:00Z
main entity:
{"identifier":"Q723219","url":"https://www.wikidata.org/entity/Q723219"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/4a/Artist%27s_concept_of_collision_at_HD_172555.jpg","width":3000,"height":2400}
fields total:
13
integrity:
16