The spacecraft passed just 3.8 million miles (6.1 million km) from the solar surface on Dec. 24, flying into the sun’s outer atmosphere called the corona, on a mission to help scientists learn more ...

NASA's Parker Solar Probe achieves historic closest approach to the Sun, venturing 3.8 million miles from the surface to unlock secrets of the Sun's intense heat and solar wind.

Nasa said today that its Parker Solar Probe was “safe” and operating normally after successfully completing the closest-ever ...