I can provide you with some context based on previous missions and factors that influence the cost of space exploration.
The cost of a mission to Jupiter's moon Europa would depend on various factors, including the mission's objectives, spacecraft design and capabilities, launch vehicle selection, and overall mission complexity. Interplanetary missions like these are typically expensive and require significant resources.
For reference, NASA's Juno mission, which was launched in 2011 and entered orbit around Jupiter in 2016, had a total cost of approximately $1.1 billion. Juno's primary objective is to study Jupiter itself, rather than its moons.
Considering that a mission specifically targeted at exploring Europa would likely involve more complex objectives such as studying the moon's icy crust and subsurface ocean, as well as potential lander or sample return missions, it is reasonable to assume that the cost would be significantly higher than that of the Juno mission.
However, it is challenging to estimate the exact cost without detailed mission specifications and plans. Furthermore, space missions often experience cost overruns and budget revisions due to technical challenges and changing priorities.
It's important to note that NASA's Artemis program, focused on returning humans to the Moon by 2024 and establishing sustainable lunar exploration, is currently a high priority for the agency, which may influence funding allocations for other missions.
For the most accurate and up-to-date information on mission costs, I recommend referring to official NASA publications, announcements, and websites dedicated to future mission planning.