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cgm simulation

COSMIC CLOAK  Whirls of cold and hot gas billow in this simulation of a circumgalactic medium surrounding a galaxy. With new tools and simulations, researchers have learned that the CGM helps a galaxy recycle its materials. 

gene-edited cancer cells

ON THE OFFENSIVE  Gene-edited cancer cells (green) release a protein deadly to other tumor cells (red).

star cluster RCW 38

SINGING THE BLUES  This image from the Very Large Telescope, taken while testing a new infrared telescope, shows infant stars (blue dots) surrounded by dust (red and orange) in star cluster RCW 38.

monarch butterfly on tropical milkweed

MONARCH BEWARE  As the climate changes, lovely tropical milkweed popular in gardens may become even more of a danger to monarch butterflies than it is now.



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