Celestial Bodies
Planet Facts
Light and Reflection
Solar System Models
Exploration of Space
100

This celestial body makes up more than 99% of the total mass of the solar system.

What is the Sun?

100

This planet has the strongest winds in the solar system, reaching up to 2,100 km/h (1,300 mph).

What is Neptune?

100

The Sun produces energy through this process, which converts hydrogen into helium.

What is nuclear fusion?

100

The model in which the Sun is at the center and planets orbit around it is called this.

What is the heliocentric model?

100

The first human to walk on the Moon was this astronaut.

Who is Neil Armstrong?

200

These celestial bodies are sometimes called "minor planets" and can be found in the asteroid belt or beyond Neptune.

What are dwarf planets?

200

Despite being the second smallest planet, this planet has the largest volcano in the solar system, Olympus Mons.

What is Mars?

200

This celestial body is the brightest object in our night sky because it reflects sunlight.

What is the Moon?

200

The ancient Greek scientist Ptolemy proposed this incorrect model, where Earth was at the center of the solar system.

What is the geocentric model?

200

This space telescope has provided some of the most detailed images of deep space.

What is the Hubble Space Telescope?

300

This celestial body has an orbit that overlaps with Neptune’s, leading to debates about its classification.

What is Pluto?

300

This planet rotates on its side, with its axis tilted at nearly 98 degrees.

What is Uranus?

300

The reason planets, moons, and asteroids are visible from Earth is because they do this with sunlight.

What is reflect it?

300

The vast distances in space are measured using this unit, which represents the distance light travels in one year.

What is a light-year?

300

This spacecraft was the first to reach interstellar space after traveling beyond the influence of the Sun’s solar wind.

What is Voyager 1?

400

These rocky or metallic objects can enter Earth's atmosphere and burn up, creating a streak of light known as a shooting star.

What are meteoroids?

400

Known as the “morning star” or “evening star,” this planet is often the brightest object in the night sky after the Moon.

What is Venus?

400

This is the main reason the Moon appears much larger than any star in the night sky, even though stars are much bigger.

What is distance?

400

This force keeps planets in orbit around the Sun and is responsible for their elliptical paths.

What is gravity?

400

The James Webb Space Telescope, launched in 2021, primarily detects this type of electromagnetic radiation.

What is infrared light?

500

This region of the solar system extends beyond Neptune and is home to icy objects, including many comets.

What is the Kuiper Belt?

500

This planet has a hexagonal-shaped storm at its north pole, a phenomenon not seen anywhere else in the solar system.

What is Saturn?

500

This phase of the Moon occurs when the Earth is directly between the Sun and the Moon, causing the entire face of the Moon to be illuminated.  

What is a full moon?

500

These two factors determine the strength of gravitational pull between objects.

What are mass and distance?

500

The first human to reach outer space.

Who is Yuri Gagarin?

M
e
n
u