Our Solar System

The first planet in our Solar System, Mercury was originally known as ___ .

This Ancient civilization was the first to "discover" Mercury.

What is the planetary composition of Mercury?

Unlike most planets in our Solar System, Venus spins on its axis in which direction?

How hot is Venus?

When is Nasa planning to send future spacecrafts to Venus?

Venus has an incredibly think atmosphere resulting in its high surface temperatures. What is the composition of this atmosphere? (Type out the full words)

How many moons does Mars have in its orbit?

Compared to Earth days, how long is one Martian Year?

This astronomer is the first to view Mars through a telescope, discovering the planet's rotation period and axis.