The planet must have been hit by an _______ or a comet.
asteroid
astronomer
celestial object
astronaut
It's the first time __________ had identified an exploding magnetar in another galaxy.
asteroids
celestial objects
astronomers
astronaut
The _________ was welcomed with joyous , resounding acclaim
spacecraft
astronomer
astronaut
pilot license
The six astronauts on board will spend ten days in ______.
galaxy
Moon
space
planet
Astronomers have discovered a distant ______.
Sun
galaxy
Earth
pilot license
Pluto is the farthest _______ in the solar system.
orbit
Earth
constellation
planet
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.
asteroids
celestial object
galaxy
planet
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.
moon
earth
sun
planet
Planet ______ is the only planet out of the eight planets in the Solar system that hosts life.
Orbit
Moon
Earth
Sun
The ________ makes the craters on the surface of the moon incredibly clear.
astronomer
lens
telescope
reflector
Studying the craters on the _____ allowed the scientists to get a better idea of how much water could be found on it.
moon
planet
sun
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.
specks of light
spacecraft
constellation
satellite
