Keeping it light ☀️ X-rays sizzle off the Sun’s surface in this image showing data from our Nuclear Spectroscopic Telescope Array, or NuSTAR, overlaid on a picture taken by our Solar Dynamics Observatory (SDO). The NuSTAR data, seen in green and blue, shows high-energy emission — revealing the X-rays come from gas heated to above 3 million degrees Fahrenheit. The red hues represent ultraviolet energy light captured by SDO and shows the presence of lower temperature material in our star’s atmosphere at 1 million degrees Fahrenheit. What does this tell us? The hotter emissions are coming from different locations in the active regions and the coronal loops, when compared to the cooler emissions shown in the SDO image. Image description: One hemisphere of the Sun is pictured, featured by saturated hues of reds and orange. Data from our SDO in ultraviolet wavelengths. At the top of the Sun are hues of blues and greens that seem to be emitted in bursts on the surface. These represent...