Description: Un cratère d'impact est une dépression à la surface d'une planète, d'une lune ou d'un autre petit corps solide du Système Solaire. Ces cratères sont formés par l'impact à grande vitesse d'un corps plus petit (météorite). La Lune est pleine de cratères d'impact en raison de son absence d'atmosphère. L'épaisse atmosphère terrestre empêche de nombreux météores d'atteindre le sol. Un exemple de cratère d'impact sur Terre est le Meteor Crater aux États-Unis, en Arizona.

Related Terms:

• Crater

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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