If the target slab is deemed suitable, a number of test holes are likely to be drilled - using the rotation as well the percussive action - before a powdered sample is picked up and delivered to Curiosity's onboard laboratories.

BBC: Curiosity Mars rover hammers into rock

While juicy exchanges will no doubt end up in the collection, lots will likely be similar to this sample message.

NPR: Microsoft, British Library Plan E-Mail Archive

Caps on section size may be more arbitrary than evidence-based (at least for section sizes up to 30 based on courses in our sample).

FORBES: More Interaction In Online Courses Isn't Always Better