The planet must have been hit by an _______ or a comet.
astronomer
celestial object
astronaut
asteroid
15
It's the first time __________ had identified an exploding magnetar in another galaxy.
asteroids
astronaut
celestial objects
astronomers
15
The _________ was welcomed with joyous , resounding acclaim
pilot license
spacecraft
astronomer
astronaut
15
The six astronauts on board will spend ten days in ______.
galaxy
Moon
space
planet
15
Astronomers have discovered a distant ______.
galaxy
pilot license
Earth
Sun
15
Pluto is the farthest _______ in the solar system.
orbit
planet
Earth
constellation
15
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
15
He earned his airline transport __________ in 2001.
pilot license
constellation
satellite
telescope
15
The ____ was shining brilliantly when all of a sudden darkness descended over the place.
sun
planet
moon
earth
15
Planet ______ is the only planet out of the eight planets in the Solar system that hosts life.
Sun
Moon
Earth
Orbit
15
The ________ makes the craters on the surface of the moon incredibly clear.
reflector
lens
telescope
astronomer
15
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
15
The __________ Ursa Major contains the stars of the Big Dipper.
specks of light
satellite
constellation
spacecraft
15
An _____ is a regular, repeating path that one object in space takes around another one.
astronomer
orbit
astronaut
asteroids
15
The __________ disintegrated as it entered the Earth's atmosphere.