Who was the third human to walk on the moon?
Charles P. "Pete" Conrad
Space is completely silent.
50% of our solar systems mass is the sun.
What is at the core of the Milky Way?
A supermassive black hole
A super giant
In how many years will our galaxy collide with the Andromedan galaxy?
Which elements make up the sun?
Hydrogen and Nitrogen
Hydrogen and Sulphur
Hydrogen and Helium
How long does it take for the light to reach the Earth?
What is the nucleus of a comet made of?
Condensed Space Rock
A total solar eclipse happens only once every: