On the first alien's space suit

http://www.bbc.co.uk/i/b0110g4b/?t=32m40s

Why would it have a human-readable insignia?

K

I saw that last night, and thought there would be an explanation later on, which there wasn't!

Thanx for reminding us.

What aren't they in 'alienese.' Why?

Posting from a mobile device means the link doesn't work, but surely usual Tardis translation rules apply?

OK, fair enough, but that still leaves the question of what the initials mean, if anything...

http://www.biomedcentral.com/1471-2334/10/49

perhaps?

K

I would have thought that even if that character did return that particular alias is dead.