Related Clues:
- Pathfinder's path
- Viking landing site
- Phobos orbits it
- Otherworldly one
- Planet beyond Earth
- Sci-fi alien
- Fourth of eight, now
- Popular sci-fi site
- 'The War of the Worlds' invader
- Scratches, perhaps
- Home of the invaders in Wells's 'The War of the Worlds'
- Milky Way owner
- ''War of the Worlds'' world
- Location of Olympus Mons
- ''The War of the Worlds'' invader