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Solar flare, mammals in a post-dinosaur world, and saving the helmeted honeyeater.

NASA’s Solar Dynamics Observatory captured this image of a solar flare – as seen in the bright flash in the upper right portion of the image – on April 1, 2022. The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares and which is colorized in SDO channel color 131. Credit: NASA/SDO