ESA’s Proba-3 Mission: Pioneering Artificial Solar Eclipses in Space
- The European Space Agency (ESA) is preparing to launch the Proba-3 mission, which aims to create artificial solar eclipses high above Earth.
- Two spacecraft will be sent into space from the Satish Dhawan Space Centre in India.
- Project manager Damien Galano explains that this mission is an experiment to demonstrate new technology.
Creating Artificial Solar Eclipses: The Proba-3 Mission
The European Space Agency (ESA) is preparing to launch the Proba-3 mission, which aims to create artificial solar eclipses high above Earth. This mission marks ESA’s first attempt at precision formation flying in orbit.
Two spacecraft will be sent into space from the Satish Dhawan Space Centre in India. The spacecraft will orbit Earth closely, ensuring they maintain a distance that does not vary by more than a millimeter. The lead spacecraft will cast a controlled shadow on the second spacecraft, allowing it to measure the sun’s corona.
Project manager Damien Galano explains that this mission is an experiment to demonstrate new technology. The satellites will align with the sun, collecting data that may help solve the mystery of why the sun’s corona is hotter than its surface. While the sun’s surface temperature is about 5,500°C, the corona can exceed 1 million degrees Celsius.
The Proba-3 spacecraft will orbit Earth every 19.7 hours for two years. They will fly in formation for six hours, using optical sensors, flashing LEDs, and a precise laser system to monitor their position and distance. The first images from this two-year mission are expected by March 2025.
Overall, the Proba-3 mission focuses on cutting-edge technology while contributing to our understanding of solar phenomena, making it an exciting development in space exploration.