The successful landing of a spacecraft on a speeding comet by the European Space Agency (ESA) opens up various possibilities for scientific discoveries. Option 1, "the age of the Sun," is not directly related to the mission. The age of the Sun is typically determined through other methods, such as measuring the radioactive decay of elements in meteorites. Option 2, "the age of the Universe," is also not directly related to the mission. The current estimate of the age of the Universe is based on observations of the cosmic microwave background radiation and the rate of its expansion.

Option 3, "new fundamental atomic particles," is also not directly related to the mission. Discovering new particles typically requires high-energy particle accelerators, such as the Large Hadron Collider.

Option 4, "the role of the comets in bringing organic matter and water to Earth," is the correct answer. Comets are believed to have played a significant role in delivering water and organic molecules to Earth during its early formation. By studying the composition of the comet`s surface and the presence of specific molecules, scientists hope to gain valuable insights into the origins of life on Earth and the potential for life elsewhere in the universe.

In conclusion, while the mission may provide valuable data and insights into various scientific