A foreign landscape beneath a familiar sight: commanded to remain operational during sunset, Martian rover Spirit photographed the sun as it sank beneath the "jibsheet," a sheet of rock that was the rover's object of attention for the better part of a month.

Spirit and its twin Opportunity have surpassed whatever height of scientific optimism might have predicted, eighteen months ago, that each Martian explorer would arrive at the Red Planet safely and not only endure the rugged environment but succeed in a penetrating exploration that has yet to be threatened by entropy or curtailment.

NASA, whose Jet Propulsion Laboratories is responsible for the rovers' achievements and discoveries, is just as beholden to tradition as any bureaucracy; and in the decade of entrepreneurs riding the free market to space, stubbornness is not only foolhardy — it is dangerous. Still, Congressmen trust that Washington still has an investment in satellites, probes and astronauts because their constituents tell them not to do otherwise; the stars will be of the public good for at least a little longer. If the space administration can be encouraged to jettison pride it will reach fruitions like the plucky Opportunity and Spirit.