In the Aug. 19 SN: Bulletins from the tick wars, roots of Rwandan genocide, spin-resistant spiders, making mums blue, tardigrade saga continues, HIV antibodies from cows, Maxwell’s demon aces memory test and more.
THE KITCHEN SINK There are a lot of ways to study the sun, as shown in this multi-wavelength mosaic from NASA’s Solar Dynamics Observatory. During the eclipse, physicists will take every possible route to figuring out why the corona is so hot.
NASA Goddard Space Flight Center
FICKLE FLAMES Streamers and filaments encircled most of the sun during a solar eclipse in 2016, when the sun’s activity was waning. The Aug. 21 solar eclipse will show physicists what the corona looks like when solar activity has quieted down even more.
© 2016 Constantinos Emmanoulidis, Miloslav Druckmüller
CRUNCH THE NUMBERS Scientists estimate that the Milky Way contains 100 million black holes.
AvigatorPhotographer/iStockphoto
