NASA's Parker Solar Probe is out of contact with mission control after its closest-ever pass of the sun on Tuesday, Dec. 24.
The mission’s close-up with the sun is the culmination of a dream that dates to the dawn of the space age, but progress was ...
Over the years, I have featured many articles about our sun, including sunspots, solar flares, cycles and its activity. Last week was a landmark occasion for NASA as a sophisticated solar probe ...