Obama's NASA budget favors a space telescope over Mars exploration

The proposed 2013 federal budget shifts funding away from missions to Mars and emphasizes manned spaceflight and astronomy.

This artist's rendering shows a 'sky crane' lowering NASA's Mars Science Laboratory Curiosity rover onto the surface of Mars. The rover launched from Cape Canaveral in November 2011 and is scheduled to land on Mars in August. The mission may be one of the last to the Red Planet in the near future, as deep budget cuts are forcing NASA to abandon plans to visit neighboring planets.

The proposed 2013 federal budget unveiled by President Barack Obama today (Feb. 13) keeps NASA funding relatively flat next year, but bites deep into the agency's robotic Mars mission coffers while shifting new funds to human exploration and space technology.

According to the White House's 2013 budget request, NASA would receive about $17.7 billion for next year — $59 million less than the space agency received for 2012.

However, NASA's planetary science efforts would suffer a 20 percent cut next year, with the president allocating just $1.2 billion for unmanned missions to Mars and other solar system bodies. Meanwhile, funding for human exploration and commercial spaceflight would rise nearly 6 percent, to $3.93 billion, and space technology would get a 22 percent bump, to $699 million.

Experts say the reduction in planetary science funding will probably compel NASA to drop out of the European Space Agency-led ExoMars missions, which aim to launch an orbiter and a drill-toting rover to the Red Planet in 2016 and 2018, respectively. NASA was due to provide rockets for both missions, as well as various instrumentation.

These two missions are viewed as key steps along the path toward a Mars sample-return mission, which many researchers regard as the best way to search for signs of life on the Red Planet.

"Underpinning this is not committing to a long-term Mars program ending in a multibillion-dollar sample-return mission," said space policy expert John Logsdon, professor emeritus at George Washington University in Washington, D.C. "They don't want to head down that road." [NASA's 10 Greatest Science Missions]

NASA's budget basics

The White House's proposed allocation for NASA in fiscal 2013 represents less than 0.5 percent of the overall federal budget request, which is $3.8 trillion.

Other NASA programs fare better than planetary science in the request for fiscal year 2013, which runs from Oct. 1, 2012, through Sept. 30, 2013. The space agency's Earth sciences program, for example, would receive $1.78 billion, slightly more than the president allocated in his fiscal 2012 budget request.

The White House also prioritizes space technology, as evidenced by the 22 percent increase requested in the 2013 budget proposal.

"The Administration's commitment to enhance NASA's role in aerospace technology development aims to create the innovations necessary to keep the aerospace industry — one of the largest net export industries in the United States — on the cutting edge for years to come," the White House wrote in a summary outlining the budget request.

Obama's proposal also allocates about $2.9 billion for NASA's next-generation manned transportation system, which consists of a heavy-lift rocket called the Space Launch System (SLS) and a capsule called the Orion Multi-Purpose Crew Vehicle.

The SLS and Orion, which are designed to carry astronauts to destinations in deep space such as asteroids or Mars, received $3 billion in fiscal 2012. NASA hopes the combo is operational by 2021.

Commercial space transportation gets a vote of confidence in the 2013 budget request. The president slotted $830 million for NASA's Commercial Crew Development (CCDev) program, NASA's effort to encourage American private spaceflight companies to start ferrying astronauts to and from the International Space Station.

Since the space shuttle retired in July 2011, NASA has been completely dependent on Russian Soyuz vehicles to perform this taxi service. The agency wants several different private spaceships to be up and running by 2017 or so. [Top Private Spaceships Headed for Reality]

Last year, the White House allocated $850 million for CCDev activities in fiscal 2012, though Congress ended up granting only $406 million. Obama requested a total of $18.7 billion for NASA last year, but Congress eventually approved just $17.8 billion.

Next-gen telescope eats up NASA funds

NASA's planetary science funding is likely being slashed in part to help pay for the James Webb Space Telescope (JWST), a huge instrument that NASA bills as the successor to its Hubble Space Telescope.

JWST has suffered numerous cost overruns and delays over the years. Back in 2001, the National Academy of Sciences pegged the telescope's price tag at $1 billion. NASA's first official appraisal, performed in 2008, estimated a cost of $5 billion, with a launch coming in 2014.

The telescope is now slated to cost $8.8 billion, and to launch in 2018 at the earliest. The White House proposes giving JWST $628 million in fiscal 2013, compared to $519 million in the current year.

"Finishing Webb is being given a higher priority than starting or committing to new Mars missions," Logsdon told SPACE.com.

NASA officials stress that the agency is still committed to exploring Mars, both for scientific purposes and to enable future manned missions to the Red Planet. NASA has had a string of successes with robotic Mars missions recently, and its 1-ton Curiosity rover is slated to touch down on the Red Planet this August to assess whether the world can, or ever could, host life as we know it.

"Consistent with the tough choices being made across the federal government to reduce spending and live within our means, NASA is reassessing its current Mars exploration initiatives to maximize what can be achieved scientifically, technologically and in support of our future human missions," NASA spokesman David Weaver told SPACE.com in an email.

"But it is important to remember that America is the only nation that has successfully landed missions on the Martian surface— and of course the only nation with a car-sized rover on its way right now to explore the Red Planet in unprecedented detail," Weaver added.

You can follow SPACE.com senior writer Mike Wall on Twitter@michaeldwall. Follow SPACE.com for the latest in space science and exploration news on Twitter @Spacedotcomand on Facebook.

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