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