Studying the craters on the _____ allowed the scientists to get a better idea of how much water could be found on it.
earth
planet
sun
moon
The _________ was welcomed with joyous , resounding acclaim
astronaut
pilot license
spacecraft
astronomer
He earned his airline transport __________ in 2001.
satellite
telescope
pilot license
constellation
An _____ is a regular, repeating path that one object in space takes around another one.
astronomer
asteroids
orbit
astronaut
It's the first time __________ had identified an exploding magnetar in another galaxy.
celestial objects
astronomers
astronaut
asteroids
The planet must have been hit by an _______ or a comet.
celestial object
astronaut
astronomer
asteroid
Astronomers have discovered a distant ______.
pilot license
Earth
Sun
galaxy
NASA _______ rockets into space.
launches
innovates
generates
observes
The ________ makes the craters on the surface of the moon incredibly clear.
astronomer
reflector
telescope
lens
We have the earth engulfed in _______ which in touching the surface of the earth touches the surface of water.
darkness
planet
brightness
telescope
The __________ disintegrated as it entered the Earth's atmosphere.
satellite
astronaut
telescope
spacecraft
A _______ ago genetic codes were certainly unknown.
decade
century
specks of light
generation
The displacement is independent of the distance from the observer to the ______________ and a telescope has to be slightly tilted to compensate for the distortion.
galaxy
planet
asteroids
celestial object
The ____ was shining brilliantly when all of a sudden darkness descended over the place.
planet
moon
sun
earth
The __________ Ursa Major contains the stars of the Big Dipper.
satellite
constellation
specks of light
spacecraft
Pluto is the farthest _______ in the solar system.
planet
orbit
constellation
Earth
The ______ orbits the Earth every 48 hours.
specks of light
constellation
satellite
spacecraft
Even when the sky is dark, there is always a __________.
spacecraft
speck of light
Moon
constellation
The six astronauts on board will spend ten days in ______.
space
Moon
planet
galaxy
Planet ______ is the only planet out of the eight planets in the Solar system that hosts life.
Sun
Orbit
Moon
Earth
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