Late Heavy Bombardment

proper noun

A prolonged event believed to have occurred around the Hadean-Archean boundary, during which an unusually high number of asteroids hit the terrestrial planets and their moons.

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Meanings

proper noun

alternative LHB

  1. A prolonged event believed to have occurred around the Hadean-Archean boundary, during which an unusually high number of asteroids hit the terrestrial planets and their moons.

Synonyms & antonyms

Also see
lunar cataclysm
Cite this entry
APA

Late Heavy Bombardment. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Late%20Heavy%20Bombardment

MLA

“Late Heavy Bombardment.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Late%20Heavy%20Bombardment. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Late Heavy Bombardment,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Late%20Heavy%20Bombardment.

Source: Late Heavy Bombardment on Wiktionary, CC BY-SA 4.0.