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Writer Fuel: Is It Time to Redefine What Makes a “Planet,” Again?

solar system - deposit photos

Astronomers are proposing a new definition of a planet, nearly two decades after a previous such change led to Pluto’s demotion. The new definition would add measurable criteria, including considerations of the planet’s mass — and it would still leave Pluto with its dwarf planet status. Currently, the International Astronomical Union (IAU) defines a planet … Read more

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Writer Fuel: One in Twelve “Twin” Stars Has Likely Eaten a Planet

star engulfs a planet - deposit photos

About one in every 12 stars may have swallowed a planet, a new study finds. Previous research had discovered that some distant stars possess unusual levels of elements, such as iron, which one would expect to make up rocky worlds such as Earth. This and other evidence suggested that stars may sometimes ingest planets, but much remained uncertain … Read more