Solar System
Stars and Galaxies
The Moon and Earth
Space Exploration
Gravity and Orbits
100

What is the hottest planet in the solar system

Venus

100

What is the name of our galaxy?

The Milky Way

100

How long does it take the Moon to orbit Earth?

About 27 days

100

Who was the first person to walk the moon?

Neil Armstrong

100

What force keeps planets in orbit around the sun?

Gravity

200

Which planet is known for it's rings?

Saturn

200

What is a star mostly made out of?

Hydrogen and helium

200

What causes tides on Earth?

The Moon's gravity

200

What is the name of NASA's famous space telescope?

Hubble Space Telescope

200

Who discovered the law of gravity?

Issac Newton
300

What planet is called the "Red Planet"?

Mars

300

What is the life cycle of a star like the sun?

Nebula --> Protostar --> Main Sequence --> Red Giant --> White Dwarf

300

What phase is the moon in when it is completely dark?

New Moon

300

What was the first artificial satellite in space?

Sputnik 1

300

What shape are most planetary orbits?

Elliptical

400

Which Planet has the most moons?

Jupiter

400

What is a bright explosion at the end of a massive star's life

A supernova

400

What causes day and night?

Earth's rotation

400

What does the ISS stand for?

International Space Station

400

What happens to gravity as distance increases?

It gets weaker

500

What separates the inner and outer planets?

The asteroid belt

500

What is the closest star to Earth

The Sun

500

What causes seasons on Earth?

Earth's tilted axis

500

What rover landed on Mars in 2021?

Perserverance

500

What is escape velocity?

The speed needed to break free from a planet's gravity

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