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Checking in with the Future of Mars Exploration at NASA

Posted by Casey Dreier

27-02-2013 14:17 CST

Topics: Space Policy, FY2014 NASA Budget, Future Mission Concepts, Explaining Policy, Mars, Mars 2020

Despite the counter-programming of the press announcement of the new crewed Mars mission by Dennis Tito, I was following today's meeting of the Mars Exploration Program Analysis Group (MEPAG), NASA's community forum for scientific input on future Mars exploration.

MEPAG meetings occur a few times a year and offer the scientific community a chance to interact with representatives from NASA Headquarters about current and future Mars mission plans and priorities. MEPAG reports to the NASA Advisory Council which in turn advises the NASA Administrator about issues within the agency. Policy is important, and a lot of important insights and background information can be conveyed in these meetings, as it can give hints to agency priorities and goals (presentations from the Human Exploration Sections, for example, repeatedly crop up in these meetings).

MSL-Derived Mars Sample Caching Concept Rover


MSL-Derived Mars Sample Caching Concept Rover
An artist's concept of an MSL-derived caching rover that uses solar panels instead of an RTG for its power source. This is similar to what was proposed on Dec 4th, 2012 by NASA as the 2020 mission to Mars, though it is unclear whether or not it would use solar panels.

If there was a theme to today's meeting, it's that the Mars program is doing very well, considering. Statements to this effect were repeated many times by NASA representatives throughout the day, and though I feel they're generally correct, it's cold comfort to many in the scientific community who still feel the sting of NASA's last-minute withdrawal from the joint-European ExoMars and TraceGas Orbiter missions last year due to unexpected budget cuts.

But it's true that the Mars program is doing ok! There is a relatively big, ambitious mission to Mars on the books (leaving in 2020). There are many active missions exploring Mars right now, and two more departing soon: MAVEN, which will explore the history of Mars' atmosphere will launch this year; and Insight, which will probe geophysical questions about the planet, launches in 2016.

So it's really a question of moving on after the past loss. There is a good future, it's not what most people wanted, but it's still pretty good. Given the budget issues, especially now with sequestration, a possible government shutdown in March with the expiration of the current funding bill, and general political gridlock, it is somewhat amazing that these future missions are (so far!) making it through relatively unscathed.

Now for some stray observations:

2020 Rover Mission

  • The Science Definition Team (SDT) was selected for the 2020 Rover, which will formulate the specific scientific goals of the mission. This group will complete its work by July 1st, 2013.
  • The rover, while using Curiosity hardware, will have a different suite of scientific instruments. The budget for these is around $80 - $100 million, about half of what was ultimately spent on Curiosity's science payload.
  • Michael Meyer, the lead scientist in the Mars Exploration Program, said that the instruments themselves will have to be simpler (or, at least the entire integrated package of instruments will have to be simpler) than Curiosity in order to stay within cost constraints. They just don't have the time and money to develop really sophisticated instruments (note: this is not necessarily a bad thing).
  • Will the new rover mission have a drill and caching system to store samples for eventual return to Earth? No comment until the science definition team finishes its work.
  • A cache and a drill would not considered part of this instrumentation cost, and they are open to international collaboration. All international contributions for instruments would have to go through the instrument selection process, which is an open competition, the announcement of which will be made by the end of Summer or early Fall.
  • Could the Mars 2020 rover use a SpaceX Falcon 9/Falcon Heavy? That decision is way off in the future, but the rockets would have to be rated to launch nuclear material first before they could consider it, since it's likely that the 2020 Rover will use a MMRTG for power.
  • Sequestration will not effect the 2020 Rover mission as yet, since funding doesn't really ramp until a few years from now.

Budget and other Issues

  • "I've spoken for three minutes and provided zero real information, and that's everything I know about the budget." - John Grunsfeld, head of the Science Mission Directorate, speaking the truth.
  • This MEPAG meeting was entirely virtual, a direct result of possible sequestration and other funding uncertainty issues.
  • Jim Green, the Director of Planetary Sciences Division, strongly advocates that Congress pass a budget for 2013 (right now they're on a continuing resolution). Early versions of the 2013 budget circulated in Congress restored some of the funding cuts to the Planetary Science division at NASA. Another continuing resolution would effectively implement the full amount of the Administration's 21% cut to the division (bad).
  • Green acknowledged that NASA's small planetary missions (these are called Discovery-class missions) are not progressing a the pace recommended in the Decadal Survey (also bad).
  • With current budget uncertainties, Green is committed to preserving Research funding in order to continue to support the scientific community. Recent drop of acceptance rates of grant proposals is due to the fact that grant proposals have doubled in the past few years and money has not. Upcoming missions like OSIRIS-REx and Insight will help somewhat by funding participating scientists.
  • Plutonium-238 restart is progressing well, and the Department of Energy is currently irradiating test targets as we speak and developing new guidelines for full-scale production start next year.
See other posts from February 2013


Or read more blog entries about: Space Policy, FY2014 NASA Budget, Future Mission Concepts, Explaining Policy, Mars, Mars 2020


Enzo: 02/27/2013 03:00 CST

Hi Casey, Could you elaborate on this : "Green acknowledged that NASA's small planetary missions (these are called Discovery-class missions) are not progressing a the pace recommended in the Decadal Survey (also bad)." What are the missions affected and the reason for the delay ? Thanks.

Casey Dreier (TPS): 02/27/2013 03:59 CST

@Enzo: I actually just wrote a piece about this in the upcoming issue of The Planetary Report, so look forward to that for more details. But, to answer your questions, this effects upcoming Discovery mission opportunities. Every couple of years NASA will announce that they will fund a new mission. The mission is decided via a competed selection process, where scientists propose ideas to fit within the Discovery mission cost-limit of around $425 million. There are no restrictions as to what the mission is as long as it fits within the price. Mission opportunities were originally conceived to be offered every one to two years, but right now it stands at every 50 months. This is due to the recent budget cuts in NASA's Planetary Science Division (more info at The last Discovery mission selected was Insight, which launches in 2016. The next announcement for a new mission will be sometime in the next few years, depending on if the funding situation changes.

Stephen: 02/28/2013 10:38 CST

Personally, I hope Tito gets his manned (flyby) mission off to Mars. However, since 2018 is less than 5 years away, so him to do by then will (I suspect) require a major miracle or two along the way, or at least a certain amount of corner cutting, especially as the private sector have yet to put anyone up into Earth orbit, let alone all the way to Mars. In fact it has yet to send any unmanned missions there either (or anywhere else outside Earth orbit come to that), so I would not go getting too excited just yet. Even NASA took seven years to fly Apollo's equivalent mission (Apollo 8). It is not as if this has been the first time a group has put a website claiming to be going to launch a space mission. More than a decade ago there was at least one private group claiming it was going to launch an unmanned lunar rover. And let's not forget SpaceDev's NEAP (==Near-Earth Asteroid Prospector), which was originally going to be launched back in the 1990s but perished from a familiar disease: lack of funding. So at the moment I would suggest that NASA (and the ESA) need not worry too much about the new competition, although unless Congress can get its budget act together and put an end to this never-ending series of self-inflicted crises that 2020 mission may yet find itself being delayed beyond 2020.

RicktheRuler: 04/06/2013 12:37 CDT

Happy and honored to be a participant of the Mars Science Laboratory Mission w/name on CD Rom.

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