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.
Some people believe in UFOs, some do not. And there will always be “proofs of UFOs”, as much as there will always be people who think it is just another conspiracy theory...