Rosetta is a European Space Agency-led robotic spacecraft mission launched in 2004 intended to study the comet 67P/Churyumov-Gerasimenko. It will arrive at the comet in May 2014.
Mars Express is a Mars exploration mission of the European Space Agency and the first planetary mission attempted by the agency. It was launched on June 2, 2003. It has been successfully performing scientific measurements since Early 2004, and will stay until (at least) May 2009.
Venus Express is the first Venus exploration mission of the European Space Agency. It is currently in orbit around Venus and collecting scientific data. It was launched on November 9, 2005, and will continue until (at least) May 2009.