/technologies/sensor-technology/b/blog/posts/how-a-solar-probe-entered-the-sun-s-atmosphere-for-the-first-time-in-human-historyThis image shows the Parker Solar Probe's milestones as it travels closer to the Sun. (Image Credit: NASA's Goddard Space Flight Center/Mary P. Hrybyk-Keith) On April 28th, 2021, NASA's Parker Solar Probe crossed the Sun's Alfvén critical sur...en-USTelligent Community 12