Planets
Space Objects
Humans in Space
Galaxies
Weird & Fun Space Facts
100
Which planet is known as the Red Planet?
Mars
100
What do we call a rock that travels through space and sometimes hits Earth?
Asteroid / Meteorite
100
Who was the first human in space?
Yuri Gagarin
100
What is the name of the galaxy where Earth is located?
Milky Way
100
Which planet could float in water because it is mostly made of gas?
Saturn
200
Which planet is the largest in our solar system?
Jupiter
200
What is the name of a huge ball of burning gas?
Star
200
Which mission first landed humans on the Moon?
Apollo 11
200
What do we call a huge system of stars, gas and dust held together by gravity?
Galaxy
200
On which planet does a day last longer than a year?
Venus
300
Which planet is famous for its rings?
Saturn
300
What do we call a massive object in space whose gravity is so strong that nothing can escape it?
Black hole
300
What space station do astronauts currently live and work on?
International Space Station (ISS)
300
What is the name of the closest large galaxy to the Milky Way?
Andromeda Galaxy
300
What food did astronauts famously grow on Mars in the movie The Martian?
Potatoes
400
Which planet is closest to the Sun?
Mercury
400
What do we call a bright object with a long glowing tail traveling through space?
Comet
400
Which astronaut said the famous phrase “That’s one small step for man, one giant leap for mankind”?
Neil Armstrong
400
Approximately how many stars are in the Milky Way galaxy?
About 100–400 billion
400
How long does sunlight take to reach Earth?
About 8 minutes
500
Which planet rotates on its side, making its seasons extremely unusual?
Uranus
500
What is the name of the cloud of gas and dust where stars are born?
Nebula
500
How long does it take astronauts to travel from Earth to the International Space Station?
About 6 hours
500
What is the name of the supermassive black hole at the center of our galaxy?
Sagittarius A*
500
In space, what happens to astronauts' height after spending time in zero gravity?
They grow a few centimeters taller