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The Man Who Loved Astronomy

Halley's comet

Halley's comet

A comet is an object in space with a tail.

Gravity

Gravity

Gravity is the force that pulls things to the Earth

Rotate

Rotate

Rotate is to spin on an axis.

Astronomer

Astronomer

An astronomer is a person who studies space.

Telescope

Telescope

A telescope makes things that are far look closer.

Revolve

Revolve

Revolve means to move in a circle.

Vocabulary Movie

CLYDE TOMBAUGH 

Clyde Tombaugh was an astronomer.  He studied space.

File:Clyde_W._Tombaugh.jpeg, and http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question16.html [1]

FARM

Clyde Tombaugh was born on a farm.  

He built his own telescopes.

By Cornell University Library (Helgafell (Snæfellsnes). Farm and hill.) [No restrictions], via Wikimedia Commons

LOWELL

OBSERVATORY

Tombaugh got a job at Lowell Observatory.  He took pictures of space.

By en:User:Pretzelpaws (http://en.wikipedia.org/wiki/Image:Clark_dome.jpg) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons

PLUTO

Clyde Tombaugh found Pluto. Pluto became the 9th planet in our solar system. 

By NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute [Public domain], via Wikimedia Commons

DWARF PLANET

Pluto was changed to a dwarf planet. It is not big enough to move other objects out of its orbit. 

By Jcpag2012 (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons​

Haumea is also a dwarf planet.  It is in the Kuiper belt, like Pluto.

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