Late Heavy Bombardment era

E459077

event in the early Solar System hypothesized geological era impact bombardment period

The Late Heavy Bombardment era was a hypothesized period about 4.1–3.8 billion years ago during which the inner Solar System, including bodies like the Moon and Mercury, experienced an intense spike in asteroid and comet impacts that heavily cratered their surfaces.

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All labels observed (3)

Label	Occurrences
Late Heavy Bombardment (if it occurred)	1
Late Heavy Bombardment era canonical	1
Late Heavy Bombardment era in inner Solar System	1

Statements (50)

Predicate	Object
instanceOf	event in the early Solar System ⓘ hypothesized geological era ⓘ impact bombardment period ⓘ
alsoKnownAs	LHB NERFINISHED ⓘ Late Heavy Bombardment NERFINISHED ⓘ lunar cataclysm NERFINISHED ⓘ
appliesTo	Earth NERFINISHED ⓘ Mars NERFINISHED ⓘ Mercury NERFINISHED ⓘ Moon NERFINISHED ⓘ asteroid belt ⓘ inner Solar System ⓘ
associatedWith	Nice model of Solar System evolution NERFINISHED ⓘ migration of Jupiter and Saturn ⓘ scattering of Kuiper belt objects ⓘ scattering of asteroids ⓘ
characterizedBy	frequent asteroid impacts ⓘ frequent comet impacts ⓘ intense spike in impact rate ⓘ
controversy	interpretation of lunar sample ages ⓘ whether bombardment was a sharp spike or gradual decline ⓘ
effectOn	formation of large impact basins on Mars ⓘ formation of large impact basins on Mercury ⓘ formation of large impact basins on the Moon ⓘ heavy cratering of planetary surfaces ⓘ intense resurfacing of early Earth ⓘ
endTime	about 3.8 billion years ago ⓘ
evidenceFrom	ages of lunar basins such as Imbrium and Nectaris ⓘ cratering records on Mars ⓘ cratering records on Mercury ⓘ lunar crater density ⓘ meteorite age distributions ⓘ radiometric dating of lunar impact melt rocks ⓘ
follows	initial planetary accretion phase ⓘ
hypothesized	to result from dynamical instability in giant planets ⓘ
impactOn	early Earth environment ⓘ thermal state of Earth’s crust and oceans ⓘ
partOf	early history of the Solar System ⓘ
possibleEffect	delivery of organic compounds to Earth ⓘ delivery of volatiles to terrestrial planets ⓘ delivery of water to Earth ⓘ sterilization of early surface life on Earth ⓘ
relevanceTo	habitability of early Earth ⓘ origin of life on Earth ⓘ
startTime	about 4.1 billion years ago ⓘ
status	subject of active scientific debate ⓘ
studiedBy	dynamical astronomers ⓘ geochemists ⓘ planetary scientists ⓘ
timeSpan	approximately 300 million years ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Caloris Basin → geologicalAge → Late Heavy Bombardment era ⓘ

Hadean Eon → includesEvent → Late Heavy Bombardment era ⓘ

this entity surface form: Late Heavy Bombardment (if it occurred)

Noachian → timeSpan → Late Heavy Bombardment era ⓘ

this entity surface form: Late Heavy Bombardment era in inner Solar System