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