Valles Marineres...Some view the gigantic rift on Mars as the aftermath of an impactor which struck Mars on the opposite side of the planet..the outgoing transitional shock wave as the impactor tunneled deep into Mars's core region..rupturing Mars ..as the energy burst out the other side of the planet.
Wal Thornhill..of * Electric Universe conveys the theme of Electrical gouging....Valles Marineres...the arc strike action from a celestial body passing near mars...A.K.A Velikovsky type scenario.
The story of the Illiad is intersting...Mars..and Venus..warring in the heavens.
Venus [Pallus Athena]...strikes Mars in the belly....Mars roars in pain as his guts spill out!
The link below is an article at Electric Universe..the similarities of Electric Arc strike on Mars..and on Earth..focus on Grand Canyon