If you woke up Thursday morning and sensed something was different about the world around you, you're absolutely right. Pluto is no
longer a planet.
The International Astronomical Union, wrapping up its meeting in Prague, Czech Republic, has resolved one of the most hotly-debated
topics in the cosmos by approving a specific definition that gives our solar system eight planets, instead of the nine most of us grew up
memorizing.
Here's how it all shakes out. The International Astronomical Union has decided that, to be called a planet, an object must have three traits.
It must orbit the sun, be massive enough that its own gravity pulls it into a nearly round shape, and be dominant enough to clear away objects in
its neighborhood.
Which best contrasts how the new definition for a planet is regarded by scientists in both passages?
1. In Passage 1 it is argued that the definition has not been as useful as it was initially expected to be, and in Passage 2 there appears
to be a lot of celebration around the exclusion of Pluto as a planet.
O2. In Passage 1 it is argued that the definition is another positive development in space discovery, whereas in Passage 2 it is argued
that there needs to be an effort towards making the definition more clear.
3. In Passage 1 the view is that the world has forever changed because of the new debition of a planet, but in Passage 2 the view is
that space discovery is now stuck in the past.
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In Passage 1 the view is that the definition has confused the majority of people, whereas is Passage 2 the view is that this new
definition is the first step forward in over one hundred years.