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