While you're busy working on the ATV reboost homework questions posted by Rhett Allain (reminder: there are prizes!) – or if you're looking for, uhmmm, a somewhat less challenging challenge – here is Question 1 in this week's fabulous ATV-4 Mission Quiz (we'll post three questions this week). Thanks to the team at EAC and especially ATV training specialist Lionel Ferra for the inspiration!
First, the intro crescendo...
And here's Question 1:
Name the two European sources
of the two different types of H2O that
ATV transports to the ISS
Hint: Both sources may be near the same city...
Got answers? Post your best guess here in the blog or tweet via Twitter (use #missionquiz hashtag) before 12:00 CEST Tuesday, 16 April.
Details and rules after the jump.















