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.
31 years ago, NASA experienced one of the greatest disasters in the history of the space program. The space shuttle Challenger broke apart just 73 seconds into the flight.The disas...