The comet Tempel 1, photographed by Deep Impact, just after its 370kg impactor had (deliberately) crashed into the comet, 4 July 2005.  There’s about 1 second between frames in the gif.
The impact speed was about 10.2 km/s, so the kinetic energy was about 20 gigajoules – about half a MOAB blast’s worth of energy.  The comet’s nucleus is about 7 kilometres across.

The comet Tempel 1, photographed by Deep Impact, just after its 370kg impactor had (deliberately) crashed into the comet, 4 July 2005.  There’s about 1 second between frames in the gif.

The impact speed was about 10.2 km/s, so the kinetic energy was about 20 gigajoules – about half a MOAB blast’s worth of energy.  The comet’s nucleus is about 7 kilometres across.