‘Black Widow’ Is Heaviest-known Neutron Star - VOA Learning English

Astronomers have discovered what they believe is the most massive neutron star. It took much of its material from a nearby star—like a black widow spider.

Space scientists have observed what they believe is the most massive known example of an object called a neutron star. It has been called a black widow since it gained much of its mass by taking it … [+4095 chars]

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