ExoMars (Exobiology on Mars) is a robotic mission to Mars to search for possible biosignatures of Martian life, past or present. This astrobiological mission is currently under development by the European Space Agency (ESA) with likely collaboration by the Russian Federal Space Agency (Roscosmos).

The program includes several spacecraft elements to be sent to Mars on two launches. An orbiter and a static lander is planned for 2016, and a Russian lander to deliver the rover is planned for 2018.

Since its inception, ExoMars has gone through several phases of planning with various proposals for landers, orbiters, launch vehicles, and international cooperation planning, such as the defunct 2009 Mars Exploration Joint Initiative (MEJI) with the United States. Originally, the ExoMars concept consisted of a large robotic rover being part of ESA's Aurora programme as a Flagship mission and was approved by Europe's space ministers in December 2005. Originally conceived as a rover with a static ground station, ExoMars was planned to launch in 2011 aboard a Russian Soyuz Fregat rocket.

Dumitru Popescu (born: January 2, 1977) in Râmnicu Vâlcea^{[citation needed]} is an experimental designer of aircraft for private spaceflight and president of Cosmonautics and Aeronautics Romanian Association (ARCA).

In 1997 he studied at the Polytechnic University of Bucharest – Aerospace Engineering. In 1998, together with a group of students, he created ARCA, which has created rockets such as the Demonstrator 2^{[citation needed]} and 2B, the Orizont, and the Stabilo.

Popescu represents the ARCA team in major X Prize Foundation (XPF) events: ARCA's 2003 and 2007 participation in the X Prize Competition^{[citation needed]} the X Prize Teams Meeting (2004),^{[citation needed]} X Prize Gala (2004)^{[citation needed]} and X Prize Cup (2005, 2006).^{[citation needed]} In 2004 Dumitru was designer and coordinated the launch of Demonstrator 2B rocket from Cape Midia Air Force Launch Base.^{[citation needed]} Demonstrator 2B was the world's first rocket equipped with completely reusable composite materials and a monopropellant rocket engine, ever to fly.^{[citation needed]} Dumitru was designer for ARCA's X Prize class vehicle Stabilo and coordinated the Mission 1 and 2 flights as well as all ground tests of this vehicle. During the ARCA's Google Lunar X Prize program Dumitru will be the team leader as well as the propulsion engineer.