Reusable rockets are here, so why is NASA paying more to launch stuff to space?

• 1998: Deep Space 1 — Delta II rocket — $86 million

• 1999: Mars Polar Lander — Delta II rocket — $88 million

• 2001: Mars Odyssey — Delta II rocket — $96 million

• 2003: Spirit and Opportunity Mars rovers — two Delta II rockets — $87 million per launch

• 2004: Swift — Delta II rocket — $90 million

• 2005: Mars Reconnaissance Orbiter — Atlas V rocket — $147 million

• 2007: Phoenix Mars lander — Delta II rocket — $132 million

Launch prices for NASA missions soared after the late 2000s, following the creation of United Launch Alliance through a merger of the Atlas

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