The Deep Impact Mission Sent an Impactor Crashing into Comet

question 161

Multiple Choice

The Deep Impact mission sent an impactor crashing into Comet Tempel 1. What happened?

• A) The impactor disappeared into the rubble and regolith covering the comet's nucleus without leaving a trace.
• B) The impactor incinerated in the comet's coma and never reached the nucleus.
• C) The comet was shattered into many small fragments.
• D) The collision caused a huge cloud of debris, but 90% of it was pulled back to the surface by the nucleus' gravity.

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