November 18, 2011

The European Space Agency and Russia's Roscosmos launched the Phobos-Grunt mission to Mars, which ultimately failed to leave Earth's orbit and was declared lost.


Baikonur, Kazakhstan | European Space Agency, Roscosmos

Watercolor painting based depiction of The European Space Agency and Russia's Roscosmos launched the Phobos-Grunt mission to Mars, which ultimately failed to leave Earth's orbit and was declared lost. (2011)

Phobos-Grunt Mission: A Failed Journey to Mars

On November 18, 2011, the European Space Agency (ESA) and Russia’s Roscosmos launched the Phobos-Grunt mission, an ambitious project aimed at exploring Mars and its moon Phobos. This mission represented a significant collaboration between European and Russian space agencies, with the goal of advancing our understanding of the Martian environment and its moons.

Background and Objectives

The Phobos-Grunt mission was primarily designed to collect soil samples from Phobos, one of Mars’ two moons, and return them to Earth for analysis. The mission’s objectives included:

  • Studying the composition of Phobos to gain insights into the origins of Mars’ moons.
  • Investigating the Martian atmosphere and dust storms.
  • Testing technologies for future interplanetary missions.

The mission was also intended to carry a Chinese satellite, Yinghuo-1, which would orbit Mars and conduct its own scientific observations.

Launch and Initial Challenges

The spacecraft was launched from the Baikonur Cosmodrome in Kazakhstan aboard a Zenit-2SB rocket. Initially, the launch appeared successful, and the spacecraft reached a low Earth orbit. However, shortly after reaching orbit, the mission encountered critical issues.

The spacecraft’s propulsion system failed to ignite, preventing it from leaving Earth’s orbit and setting course for Mars. This failure was attributed to a malfunction in the onboard computer system, which was supposed to execute the necessary maneuvers to propel the spacecraft towards Mars.

Consequences and Aftermath

Despite efforts to re-establish communication and correct the trajectory, the mission was ultimately declared lost. The spacecraft remained stranded in Earth’s orbit, and it eventually re-entered the Earth’s atmosphere, disintegrating over the Pacific Ocean in January 2012.

The failure of the Phobos-Grunt mission was a significant setback for Roscosmos, marking a series of challenges faced by the Russian space program in the early 21st century. It underscored the complexities and risks associated with interplanetary missions, particularly those involving sample return objectives.

Broader Historical Significance

The Phobos-Grunt mission highlighted the importance of international collaboration in space exploration, as well as the technical challenges inherent in such ambitious projects. Despite its failure, the mission provided valuable lessons for future endeavors, emphasizing the need for rigorous testing and redundancy in spacecraft systems.

In the broader context of space exploration, the mission’s failure served as a reminder of the difficulties faced by space agencies worldwide in their quest to explore and understand our solar system. It also reinforced the commitment of these agencies to continue pursuing scientific discovery, despite setbacks.

In conclusion, the Phobos-Grunt mission, while unsuccessful, remains a notable chapter in the history of space exploration, reflecting both the challenges and the collaborative spirit that drive humanity’s quest to explore the cosmos.

Source: www.esa.int