A faint, fleeting supernova may be the key to understanding how neutron star duos are born. Astronomers have spotted what seems to be an ultrastripped supernova: a massive star in its death throes after its outer layers of gas have been siphoned off slowly by a compact companion such as a neutron star or black…

Read more The first observed wimpy supernova may have birthed a neutron star duo

The “ring rain” of material falling from Saturn’s rings into the planet’s atmosphere is a much more intense, contaminated downpour than scientists thought. For decades, astronomers have suspected that Saturn’s rings pelt the planet with grains of water ice, but some of the final observations from NASA’s Cassini spacecraft provide the first detailed views of…

Read more Saturn’s “ring rain” is a surprising cocktail of chemicals

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