The Solar System
Stars
Galaxies
Physics & Math
100

The number of planets in the solar system.

8

100

This constellation is also known as Osiris in Egyptian mythology.

Orion

100

The name of our galaxy.

The Milky Way

100

This effect allows astronomers to calculate the distance to far away stars.

The Parallax Effect
200

The seventh planet from the Sun.

Uranus

200

The closest star to the Sun.

Proxima Centauri

200
The supercluster that our galaxy is a part of.

Laniakea

200

The unit that physicists use to discuss weight on different planets.

Newtons

300

An event that causes disruptions to the Earth's magnetic field.

Solar storm

300

The final life stage of the largest stars.

Black hole

300

This galaxy will collide with ours in about 4.5 billion years.

Andromeda

300

This term describes objects that spin on their own axis in exactly as much time as it takes them to orbit another object.

Tidally locked

400
An adjective for planets that are mostly made of rock.

Telluric

400

The Sun's next life stage.

Red Giant

400

This irregular galaxy is close to the Milky Way, only 160,000 light years away.

The Large Magellanic Cloud.

400
The approximate amount of time it takes the Sun's light to reach Earth.

8 minutes

500

The approximate age of the Sun.

4.5 billion years

500

This element is fused into helium at the Sun's core.

Hydrogen

500

The name of the supermassive black hole at the center of our galaxy.

Sagittarius A

500

The approximate weight in Newtons of an object that weighs 12 Newtons on Earth when it's on the moon.

2 Newtons