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The Mars program is designed to follow
up on new discoveries, or put another way, it is "discovery-driven".
That means it is impossible to say right now exactly what type
of mission should be flown for 2011 and beyond. Mars scientists
are going to see what the current missions discover before recommending
what should come next. A good example is the extensive amount
of ice that Mars Odyssey discovered on Mars. The decision was
made to follow up that with a 2007 lander named Phoenix that
is capable of digging into the ice near the North Pole and directly
analysing it. Mars missions take years to prepare so a decision
has to be made about 4 years or so before the launch opportunity.
That means that JPL is kept busy preparing many different options,
all of which require years of technology development and mission
planning.
In January, 2007
NASA HQ selected two candidate Mars Scout proposals: "MAVEN" and "The Great Escape".
See also "NASA
Selects Proposals For Future Mars Missions And Studies"
Sample return and subsurface
access are part of the future Mars program
Future missions might include a 2013
Mars Science Orbiter (MSO). Another possibility for the next
decade is an Astrobiology Field Laboratory rover followed by
a Deep Drill Lander. A new
landing technique is being developed
for some of the next decades missions which would use a skycrane. It is expected that there will be more Mars
Scouts every four years.
We are going through a revision of
the "Mars mission timeline" because of the need to
prepare for human missions to the Moon and Mars and beyond. JPL
is certainly in the midst of it all and I am, too. So much change
is going on around me that it's been almost overwhelming until
I remember that the program has always been evolving and always
will .......that's just the nature of the exploration business.
Expect the unexpected and be prepared to take advantage of it! |