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