Literally burned by its proximity to the Sun, Mercury and Venus are hostile worlds.
One started with the craters from cosmic collisions, and the other, a vortex of sulfur dioxide, carbon and acid rain.
Prime examples of planets gone awry, do these serve as a warning for ominous scenarios that could someday threaten Earth?
Vanguard uses computer graphics to show what life on other planets & to imagine what kind of life forms might evolve in this alien atmosphere.