Is Europa really the "highest priority" of the community?, Cleave said it was at LPSC? Options

[mcaplinger]

From Emily's LPSC blog: "Bob Pappalardo would not sit down until he got Cleave to acknowledge that Europa is the consensus highest priority of the planetary science community."

Cleave was obviously poorly prepared for this session, but I don't see that this acknowledgement is either meaningful or particularly accurate. If Europa were the "highest priority" of the PS community as a whole, then one might wonder why we were spending all this money on Mars. I could easily imagine that Europa is the highest priority of the outer planets community, but frankly I was surprised when Europa Orbiter appeared in the '07 budget (presumably the result of some serious lobbying on someone's part.) It was pretty obvious to me then that there would be no money for it, especially in the aftermath of JPL running the old EO project into the ground with cost overruns and engineering upscopes. (And JIMO is best forgotten.)

Don't get me wrong, I would love to be involved with a Europa mission (we did what I think was a good proposal design for EO) but I don't see either the money or the political support being there in the near term. I know it's frustrating, but one has to be realistic, and it might help to avoid the aura of entitlement that I perceive is building in some parts of the community (not referring to you, Bob). Of course, I am just a lowly engineer.

[Guest_BruceMoomaw_*]

It would take a LOT bigger retrorocket.

By the way, I've just gotten a new E-mail from Paul Lucey in response to my account to him of how the Europa penetrator idea was greeted at the Europa meeting. Despite my own rapidly growing doubts about the idea, HE still thinks it's workable, but expresses his pleasure that a piggyback lander of ANY sort is being considered. (Assuming, of course, that Europa Orbiter ever flies at all.)

[JRehling]

It would take a LOT bigger retrorocket.

A nice resource for this board, and something that ought to be derivable in a one-time shot, would be a list of delta-vs, like the mileage chart in the road atlas. Earth would usually be the From (!), but there are many parameters for the To (given a world, there is flyby, elliptical orbit, circular low orbit, soft lander...).

Now, who will generate that table?