Planetary Society logo
  • “Exploration is in our nature.” - Carl Sagan

Bruce Murray Space Image Library

Parker Solar Probe approaches the Sun

Parker Solar Probe approaches the Sun
Parker Solar Probe approaches the Sun Artist’s impression of Parker Solar Probe approaching the Alfvén critical surface, which marks the end of the solar atmosphere and the beginning of the solar wind. Parker Solar Probe’s crossing into this zone in April 2021 means the spacecraft has touched the Sun for the first time. NASA/Johns Hopkins APL/Ben Smith