Cassiopeia (pronounced kass ee oh pee' uh) the Queen is one of the first constellations amateur astronomers come to recognize. That's because its five brightest stars form an asterism that looks ...

36,356 people played the daily Crossword recently. Can you solve it faster than others?36,356 people played the daily Crossword recently. Can you solve it faster than others?

JWST took three separate exposures of the Cassiopeia A supernova remnant, showing how the constituent gas and dust changed over time. Note, the bottom two images are rotated slightly compared to ...