Chuck Darwin<p>The NASA administrator at the time, <br>Sean O'Keefe, <br>sought to develop a new generation of spacecraft <br>💥powered by nuclear reactors💥 as part of what he called <a href="https://c.im/tags/Project" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Project</span></a> <a href="https://c.im/tags/Prometheus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Prometheus</span></a>. </p><p>He believed that a mission with Europa as its main target offered a perfect test case for the technology, <br>and thus, the "Jupiter Icy Moons Orbiter"<br>was born. </p><p>This was a highly ambitious mission. A typical spacecraft uses on the order of a few hundred watts of power. </p><p>This probe, powered by a nuclear reactor, would have had on the order of 100,000 watts of power.</p><p>The Jupiter Icy Moons Orbiter was audacious in other ways, <br>such as using a landing component to directly sample Europa's ice. </p><p>Unfortunately, the mission also became insanely expensive, <br>with a budget blasting past $20 billion. </p><p>When O'Keefe was replaced by a new administrator in 2005, Mike Griffin, the Jupiter Icy Moons Orbiter was put on ice.</p><p>Galileo sparked an incredible amount of interest in Europa. </p><p>First, NASA tried a fast, cheap mission. </p><p>Then the agency worked on the most ambitious spacecraft concept ever put forward. </p><p>Both failed. A decade was lost.</p><p>❇️ A new champion emerges</p><p>In 2000, a conservative Texas attorney named <br><a href="https://c.im/tags/John" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>John</span></a> <a href="https://c.im/tags/Culberson" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Culberson</span></a> won election to the US House of Representatives for the first time. </p><p>For a time, he focused on local issues, such as freeway construction in the greater Houston area. </p><p>However, after the cancellation of the Jupiter Icy Moons Orbiter, he was furious.</p><p>Most people in Congress, to the extent they care about NASA, do so for parochial interests and local jobs. </p><p>For Culberson, that meant Johnson Space Center, which was located in a district adjacent to his. </p><p>But Culberson was also deeply interested in planetary exploration, <br>and he wanted to be associated with NASA's first mission to find life on another world. </p><p>So he became an advocate of funding for a NASA center on the opposite side of the country, <br>the Jet Propulsion Laboratory, <br>which led the agency's robotic exploration efforts.</p><p>As a member of the House Appropriations Committee, Culberson began to tuck funding into NASA's budget for the ongoing study of a Europa orbiter.</p><p>During this period, as a science reporter for the Houston Chronicle, <br>I began to bump into Culberson at various events around town. </p><p>He was both a conservative Christian politician and a life-long science geek. </p><p>Skeptic that I am, I wondered if his interest in science was an act to ingratiate himself with constituents, <br>given that the Houston area has a large biomedical community. </p><p>Eventually, however, I began to realize it was totally genuine. </p><p>He is fascinated by the Solar System and wants to know more about its origin and whether it harbors life on worlds other than Earth. </p><p>We bonded over this mutual interest.</p><p>In the meantime, there were more furtive starts on a Europa mission. </p><p>In 2007, NASA began studying mission concepts for <a href="https://c.im/tags/Europa" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Europa</span></a> and <a href="https://c.im/tags/Ganymede" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ganymede</span></a> in the Jovian system, <br>as well as the moons <a href="https://c.im/tags/Titan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Titan</span></a> and <a href="https://c.im/tags/Enceladus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Enceladus</span></a> around Saturn. </p><p>Working with international partners two years later, NASA eventually down-selected to a combination mission in which the US space agency built an orbiter for Europa <br>and the European Space Agency one for Ganymede </p><p>(eventually, this European mission did launch, as <a href="https://c.im/tags/JUICE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JUICE</span></a>, in 2023). </p><p>NASA's part was known as the Jupiter Europa Orbiter.</p><p>However, a year later, new NASA Administrator Charles Bolden was looking for ways to cut the agency's budget. </p><p>By now, you probably know what was about to happen. </p><p>Sure enough, the Jupiter Europa Orbiter's budget was ballooning to above $3 billion. </p><p>And there was another problem<br>—Mars became ascendant in the agency's exploration interests.</p><p>"For the first time in 20 years, <a href="https://c.im/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mars</span></a> was brought into competition with the outer planets," Brown said.</p><p> "The top endorsement in a painful budget environment was a Mars Sample Return. As a result, the Jupiter Europa Orbiter died."</p><p>Once again, Culberson was not happy. But this time, he would soon be in a position to do something about it.</p>