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Introducing Janus, the exotic “two-faced” white dwarf star

An artist's concept shows the two-faced white dwarf star nicknamed Janus.

Washington DC, USReuters Some people are two-faced, figuratively speaking of course. The ancient Roman god Janus was two-faced, literally – with one looking forward and another backward, representing transitions and duality. But a two-faced star? Yes, indeed. Scientists have observed a white dwarf star – a hot stellar remnant that is among the densest objects in the […]