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This NASA Scientist Helps Prevent Mars from Getting Contaminated I NOVA I PBS

11,883 views

NOVA PBS Official

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

93%
  • 4:39 / 4:58

Speech Rate:

  • 168 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Special thanks to The Free Dictionary for providing us with the information used in this web page

Video Vocabulary

planets

/ˈplanət/

planets
noun other

celestial body moving round star. One of the bodies that orbit the sun.

ancient

/ˈān(t)SHənt/

ancient
adjective noun

of very distant past. old man.

dormant

/ˈdôrmənt/

dormant
adjective

Temporarily not active/growing.

includes

/inˈklo͞od/

includes
verb

comprise or contain as part of whole.

bacteria

/ˌbakˈtirēəm/

bacteria
noun

member of large group of unicellular microorganisms.

amazing

/əˈmāziNG/

amazing
adjective verb

causing great surprise or wonder. To cause wonder; to surprise completely.

environment

/inˈvīrənmənt/

environment
noun

Natural world in which plants and animals live.

accomplishes

/əˈkämpliSH/

accomplishes
verb

achieve or complete successfully.

microbial

/mīˈkrōbēəl/

microbial
adjective

Concerning, involving or caused by being microbes.

bacterial

/bakˈtirēəl/

bacterial
adjective

relating to or caused by bacteria.

descent

/dəˈsent/

descent
noun

The origin of your family; your family before you.

teaspoon

/ˈtēˌspo͞on/

teaspoon
noun

small spoon used for adding sugar to and stirring hot drinks.

spacecraft

/ˈspāsˌkraft/

spacecraft
noun

vehicle used for travelling in space.

microbes

/ˈmīˌkrōb/

microbes
noun other

microorganism. Very small, microscopic living thing.

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