An article published in the journal “Physical Review Letters” reports the passage of NASA’s Parker Solar Probe through the Sun’s atmosphere, under what is called the Alfven critical surface. NASA announced this success, the first for an artificial vehicle, at the annual American Geophysical Union Meeting. It’s a milestone not only for this space probe’s mission but for the study of the Sun in general. Specifically, the Parker Solar Probe passed through what is known as the corona, the upper part of the atmosphere, collecting samples and measuring magnetic fields. The information gathered directly from the solar plasma will help to better understand the processes taking place in the star that, among other things, supports life on Earth and affects the environment on the Earth and the other objects in the solar system.