Astronomers serene can't agree on what counts as a planet

In 2006, the International Astronomical Union came up with a new way to classify planets that famously saw Pluto downgraded. Now a new row has started as astronomers try to define exoplanets Space 25 March 2022 By Alex Wilkins An artist’s impression of a Jupiter-like exoplanetShutterstock/Artsiom P What is a planet? Despite decades of trying,…

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In 2006, the Global Mammoth Union came up with a peculiar ability to classify planets that famously seen Pluto downgraded. Now a peculiar row has started as astronomers try to outline exoplanets

Dwelling



25 March 2022

By Alex Wilkins

Exoplanet

An artist’s impact of a Jupiter-indulge in exoplanet

Shutterstock/Artsiom P

What is a planet? Irrespective of a few years of trying, astronomers serene haven’t found out a definition that all people can agree on – and the self-discipline entirely gets more challenging when brooding about worlds out of doors our photograph voltaic machine. Essentially the most neatly-liked try to outline an exoplanet has sparked fresh controversy.

The Global Mammoth Union (IAU), arbiter of all issues cosmic, quandary out a closing definition for planets in our photograph voltaic machine in 2006, famously demoting Pluto to a dwarf planet in the technique. Its first requirement is that a …

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