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There's a more detailed discussion of several of these missions over on NASASpaceflight.com. I happen to know both of the PI's for the non-selected missions (and I've met the PI for the InSight mission).There is a better image of the Titan Mare Explorer than the one that they used. I've attached that. TiME even had mission patch.InSight used to be called GEMS, as the article states. But GEMS is actually a de-scoped version of a New Frontiers mission proposal for sending three landers to Mars simultaneously. That mission proposal was called Cerberus and it would have been expensive. Scaling it down from 3 to 1 lander reduced the data, but made it affordable. Because InSight would use the same lander as Phoenix, it is already a proven design. That reduced cost and schedule risk. TiME was probably not something that could make it under the Discovery cost cap, and Comet Hopper might have been pushing the cost cap as well.
There's a more detailed discussion of several of these missions over on NASASpaceflight.com. I happen to know both of the PI's for the non-selected missions (and I've met the PI for the InSight mission).
There is a better image of the Titan Mare Explorer than the one that they used. I've attached that. TiME even had mission patch.
InSight used to be called GEMS, as the article states. But GEMS is actually a de-scoped version of a New Frontiers mission proposal for sending three landers to Mars simultaneously. That mission proposal was called Cerberus and it would have been expensive. Scaling it down from 3 to 1 lander reduced the data, but made it affordable. Because InSight would use the same lander as Phoenix, it is already a proven design. That reduced cost and schedule risk. TiME was probably not something that could make it under the Discovery cost cap, and Comet Hopper might have been pushing the cost cap as well.
