On January 12, 2005, NASA launched its Deep Impact mission to crash into comet Tempel 1, also known as 9P/Tempel. [‘On This Day in Space’ Video Series on Space.com](https://www.space.com/39251-on-this-day-in-space.html)

Two spacecraft were launched together for this mission: one was a flyby vehicle about the size of a Volkswagen Beetle, and the other was an impactor the size of a coffee table. The mission would study the comet's interior by smashing into its surface and taking pictures of the impact crater and all the dust and dirt it kicked into space. Deep Impact launched from Cape Canaveral on a Delta II rocket and spent nearly six months chasing down the comet before the crash.