Helios 1B
Helios 1B is a solar observation satellite launched by NASA on January 21, 1976. It was part of the Helios program, which aimed to study solar phenomena and their effects on the solar system. The satellite was designed to measure solar radiation, solar wind, and magnetic fields, providing valuable data about the Sun's behavior.
The mission of Helios 1B lasted until 1980, during which it successfully gathered information that contributed to our understanding of solar activity and its impact on Earth. The satellite operated in a highly elliptical orbit, allowing it to get close to the Sun and collect detailed measurements.