RHESSI Stories

Every morning for the past 16 years, solar physicist Säm Krucker sat down at his desk to check the latest data from NASA’s RHESSI. Had the solar observatory seen a flare overnight? If there was a new flare, Krucker, RHESSI…

On Aug. 21, 2017, the Moon will slide in front of the Sun and for a brief moment, day will melt into a dusky night. Moving across the country, the Moon’s shadow will block the Sun’s light, and weather permitting,…