When scientists look to the skies for clues about life's origins, water is one of the first things they seek. Life, as it's ...

The first type of supernova is a core-collapse supernova. These occur in stars at least eight to 10 times more massive the Sun. As stars age, they deplete the hydrogen in their core. They then ...

Outside of the inner ring are two outer rings, presumably produced by the same process as formed the inner ring. The bright stars to the left and right of the inner ring are unrelated to the ...