The proposed [[Jupiter Icy Moons Orbiter]], which would almost certainly have had Europa as a prime target, has recently been cancelled.<ref name=JIMO>"[http://www.planetsurveyor.com/latest-space-exploration-news/jupiter-icy-moons-orbiter-victim-of-budget-cut.html Jupiter Icy Moons Orbiter Victim of Budget Cut]." ''Planet Surveyor'', May 23, 2005. Accessed February 18, 2008.</ref> But other proposals for further exploration remain under consideration. At least one such proposal calls for a probe to crash through the ice and release a robotic submersible to explore the water beneath the ice.<ref>[http://sbir.gsfc.nasa.gov/SBIR/abstracts/98/sbir/phase1/SBIR-98-1-25.01-9300.html A Submersible Remotely Operated Vehicle System for Exploration of Large Subglacial Bodies of Water]. Proposal 98-1 25.01-9300, SBIR Phase I, [[NASA]]. Accessed February 29, 2008.</ref> | The proposed [[Jupiter Icy Moons Orbiter]], which would almost certainly have had Europa as a prime target, has recently been cancelled.<ref name=JIMO>"[http://www.planetsurveyor.com/latest-space-exploration-news/jupiter-icy-moons-orbiter-victim-of-budget-cut.html Jupiter Icy Moons Orbiter Victim of Budget Cut]." ''Planet Surveyor'', May 23, 2005. Accessed February 18, 2008.</ref> But other proposals for further exploration remain under consideration. At least one such proposal calls for a probe to crash through the ice and release a robotic submersible to explore the water beneath the ice.<ref>[http://sbir.gsfc.nasa.gov/SBIR/abstracts/98/sbir/phase1/SBIR-98-1-25.01-9300.html A Submersible Remotely Operated Vehicle System for Exploration of Large Subglacial Bodies of Water]. Proposal 98-1 25.01-9300, SBIR Phase I, [[NASA]]. Accessed February 29, 2008.</ref> |