The planet must have been hit by an _______ or a comet.
celestial object
astronaut
astronomer
asteroid
It's the first time __________ had identified an exploding magnetar in another galaxy.
astronomers
asteroids
celestial objects
astronaut
The _________ was welcomed with joyous , resounding acclaim
spacecraft
pilot license
astronaut
astronomer
The six astronauts on board will spend ten days in ______.
Moon
galaxy
planet
space
Astronomers have discovered a distant ______.
galaxy
Earth
pilot license
Sun
Pluto is the farthest _______ in the solar system.
orbit
constellation
planet
Earth
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
He earned his airline transport __________ in 2001.
satellite
pilot license
constellation
telescope
The ____ was shining brilliantly when all of a sudden darkness descended over the place.
earth
planet
sun
moon
Planet ______ is the only planet out of the eight planets in the Solar system that hosts life.
Orbit
Sun
Earth
Moon
The ________ makes the craters on the surface of the moon incredibly clear.
telescope
astronomer
reflector
lens
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 __________ Ursa Major contains the stars of the Big Dipper.
satellite
spacecraft
constellation
specks of light
An _____ is a regular, repeating path that one object in space takes around another one.
astronaut
asteroids
orbit
astronomer
The __________ disintegrated as it entered the Earth's atmosphere.
telescope
satellite
astronaut
spacecraft
The ______ orbits the Earth every 48 hours.
specks of light
satellite
spacecraft
constellation
