The Sun
Planets
Moons
Spacecrafts
Random stuff
1

What is the main component of our sun?

Hydrogen

1

By today's standards, how many official planets do our solar system have?

8

1

How many confirmed moons does Venus have?

0

1

What does I.S.S stand for?

International Space Station

1

On which celestial body in the solar system can you survive the longest without a space suit?

Earth

2

How long time does it take for the sun's light to reach Earth?

8 minutes

2

Earth has another name, what is it?

Tellus, or Terra

2

What is the name of the 2 Mars moons?

Phobos and Deimos
2

Name one rover that has been put on Mars.

Sojourner/Spirit/Opportunity/Curiosity/Perseverance/Zhurong

2

How long distance is 1 AU?

The distance from the Sun the Earth

3

What happens during a solar-eclipse?

The moon passes in front of the sun

3

What planet has a longer day than year?

Venus

3

Which moon is the closest to Jupiter?

Io
3

Which apollo mission successfully put a man on the moon?

Apollo 11

3

Name a celestial body in our solar system (excluding Earth) that has a thick atmosphere

Venus, Titan

4

How will the sun die?

It will turn into a red giant, shed its outer layers, then shrink to a white dwarf.

4

What planet has the most moons?

Saturn (285 moons)

4

Which moon is the largest is in the solar system? (By surface area)

Ganymede

4

What is the furthest built object from Earth?

Voyager 1

4

How fast is the speed of light? (In km per second)

300 000 km/s

(More specifically 299 792 km/s)

5

What is a Dyson sphere?

A hypothetical megastructure consisting of a shell enveloping the sun to absorb sunlight and convert it into insane amounts of energy

5

How much would you have to compress the Earth to turn it into a black hole?

Down to the size of a marble (About 1,5 cm)

5

If the moon were to reach the roche limit with Earth, what does that mean?

The Earth gravitational pull on the moon would get stronger than the moons internal gravity, which causes the moon to fall apart and disintegrate.

(And yes, this would cause great disasters on earth, in various ways.)

5

Researchers have come up with a few ideas for "stellar engines", what is the name and purpose of these hypothetical constructs?  

Built to move the sun, and with that, the rest of the solar system follows.  2 Examples are: The Shkadow thruster, and the Kaplan thruster.

5

What is the furthest astronomical thing that is still considered part of our solar system?

The Oort cloud

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