You might wonder why Nasa is interested in exploring Venus, but it actually has a lot of similarities with our homeworld.
Not only is it our nearest neighbour, but it has the same size, mass, density, gravity and composition as Earth.
There is one slight problem, however: it is the hottest planet in the solar system with surface temperatures reaching 465C.
Oh, yes, and we almost forgot: there are clouds of sulphuric acid there, too.
Enter the HAVOC (High Altitude Venus Operational Concept) airship – a method of transport which would allow astronauts to explore the planet without having to risk contact with a surface hot enough to melt lead.
These solar-powered flying machines would allow scientists to spend up to a year studying the planet.
Nasa Langley Research Center have even theorised they could build floating ‘cities’.