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How Do We Know There’s a Planet 9? The Signs of Another Planet in the Distant Solar System

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Intro:

Video Vocabulary

/ˈrē(ə)ˌlīz/

verb

To become aware of or understand mentally.

/ˈstədē/

verb

devote time and attention to gaining knowledge of academic subject.

/märCH/

noun other verb

act of marching. Walks by a group of soldiers who walk in time. To walk somewhere quickly often in an angry manner.

/fəˈmilyər/

adjective noun

Well-known or easily recognized. demon supposedly obeying witch.

/ˈpräbəblē/

adverb

certainly.

/ˈsirēəslē/

adverb

To a large or extreme degree.

/ˈəltəmətlē/

adverb

null.

/əˈstränəmē/

noun

branch of science which deals with celestial objects.

/mes/

verb

To make something untidy or dirty.

/ˈmōSH(ə)n/

noun other verb

action of moving. Suggestions at a meeting. To communicate by moving your head or hand.

/ˈteks(t)ˌbo͝ok/

adjective noun

conforming or corresponding to established standard or type. A book that is used to study.

/kənˈfərmd/

adjective verb

firmly established in particular habit, belief. To formally approve or check something.

/ˈpəbliSHər/

noun other

company or person that prepares and issues books. Businesses that produces books or magazines.

/kəmˈpyo͞odər/

noun other

electronic device for storing and processing data. Machines for storing data, accessing the internet.

noun other verb

material thing. Some things you can see or touch, but is not alive. express disagreement.

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