Solar Orbiter, a spacecraft led by the European Space Agency (ESA) with contributions from NASA, has made history by capturing the first images of the sun’s elusive poles. While previous missions have studied the sun’s poles, Solar Orbiter is the first to send back photographs of these regions.
The mission, which launched in February 2020, has been monitoring the sun since November 2021. However, it is only now beginning its most exciting work of studying the poles of the sun. The spacecraft’s unique orbit, tilted 33 degrees with respect to the solar system’s ecliptic plane, allows it to capture unprecedented views of the sun’s poles.
The sun’s poles are not just geographic poles but also magnetic poles. The sun’s magnetic field plays a crucial role in driving the 11-year solar activity cycle. Understanding the magnetic activity at the sun’s poles is essential for predicting space weather, which can impact our daily lives by disrupting power grids, communication systems, and even posing risks to astronauts.
Solar Orbiter has three different instruments onboard that allow scientists to glimpse various phenomena on the sun. For example, one image maps the magnetic field at the sun’s surface, revealing a tangled mess of north and south polarity patches characteristic of the solar maximum phase.
While Solar Orbiter is the first spacecraft to capture images of the sun’s poles, it is not the first to fly over these regions. The Ulysses mission, launched in 1990, made many discoveries about the sun and its poles but did not have cameras to capture images. Solar Orbiter’s ability to capture images of the sun’s poles marks a significant advancement in heliophysics and allows scientists to shed light on these previously unseen regions.
In conclusion, Solar Orbiter’s groundbreaking images of the sun’s poles provide valuable insights into the sun’s magnetic activity and help scientists better understand and predict space weather. These images highlight the importance of space missions in advancing our knowledge of the sun and its impact on our planet.
