Reference Venus is one of the weirdest planets in the solar system. We explore the scorching planet in more detail with 20 interesting facts about Venus.
Elon Musk has teased the world with sneak peeks of what the spaceship to take humans to Mars could look like.
Mars is the second-most studied planet — only behind our own — but we know virtually nothing about its interior. That's about to change with NASA's InSight.