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Life Out There
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Some people think that ______ may live on other planets.
extraterrestrials
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A(n) _____ is someone who travels in space.
astronaut
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A cloud of rock, ice and gas make up a ______.
comet
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Scientists know when comets will appear because they keep ______ .
data
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True or False: We can't see planets in other solar systems because they are far away.
True
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True or False: SETI scientists plan to have 350 satellite dishes one day.
True
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A ______ around the sun takes many earth years.
journey
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True or False: We haven't heard from extraterrestrials yet.
True
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Many people _______ the question about extraterrestrials living on other planets.
debate
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We can send things to space in a powerful _____.
rocket
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People perform experiments in space on the _____.
space station
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Earth is a ______
planet
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Are you everyone / someone who could live and work on the space station?
someone
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The rover _____ for life on Mars.
searches
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The Earth orbits the _____.
sun
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True or False: Satellite dishes can't hear very weak signals.
False
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A ______ is made up of stars and solar systems.
galaxy
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The Mars rover _____ with computers on Earth.
communicates
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True or False: Scientists at SETI have made a tool for listening to sounds in solar system.
True
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I think I anyone / someone will go to Mars one day.
someone
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Does anyone / no one think we will see extraterrestrials in our lifetime?
anyone
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True or False:If extraterrestrials send us messages, we might hear them with special mobile phones.
False
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There are lots of galaxies in the ______ .
universe
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Earth has a(n) _______ with oxygen to breathe.
atmosphere
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Planets _______ the sun.
orbit
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The sun and planets make up our _____-_____ .
solar system
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One day, we may land a _____ on the moon again.
spacecraft
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No one / Someone knows how big the universe is.
No one
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