NASAのインスタグラム(nasa) - 2月2日 22時37分

Super Bowl Sunday? For us, it’s #SupernovaSunday! Today, we’ll post information & images about the stellar explosions known as supernovas.

A supernova is the explosion of a star. It is the largest explosion that takes place in space. Supernovas are often seen in other galaxies. But supernovas are difficult to see in our own Milky Way galaxy because dust blocks our view.

This image is of Cassiopeia A, among the best-studied supernova remnants. This image blends data from NASA's Spitzer (red), Hubble (yellow), and Chandra (green and blue) observatories.

Credit: NASA/JPL-Caltech/STScI/CXC/SAO

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