User blog comment:USS Enterprise CVN-65/The New (And Improved) Official Roleplay Room/@comment-12161342-20150604125438/@comment-12161342-20150604135606

Deep Space, near Mars

''The void of space is silent and black, as empty as space can be. Suddenly, several dozen Aneph and Arendelle ships drop out of warp, with a massive 25km dimater comet between them. Even with Arendelle's research into advanced large scale munitions and Aneph's research into advanced warp technologies, it still took the combined warp field of several dozen Aneph and Arendelle ships to move the comet from the Oort Cloud over the span of a week, using mostly sublights while their warp drives recharged for another small jump with the comet. But finally, after a week's journey, the comet is on a collision course with the Red Planet.''

''The giant comet moves swiftly towards Mars with the ships still attached and correcting its course to land in the designated area, for if it is even slightly off course, thousands will die in agony. As the comet blows past the Aneph weapons-testing moon of Demios, the ships detach and watch from afar as the comet streaks down towards impact.''

Syrtis Major Planum, Mars

''The truly ancient shield volcano, which has been extinct for billions of years, lies silent, as does the evacuation zone around it. The Aneph ships patrolling the borders of the evac zone have departed, so as to not be caught in the blast. Up in the sky, a slowly-brightening new star in the sky appears on the horizon, climbing into the sky as the planet rotates. The star grows brighter and larger, climbing ever-higher into the sky. Suddenly, the star flares up a bright yellow-orange, as it is the comet, and it has just entered the Martian atmosphere at a 45 degree angle. From Syrtis Major, the star continues to flare for several seconds, glowing brighter all the while and taking the shape of a large misshapen circle. Then, there is nothing.... nothing at all.''

''The 25km wide comet impacts the central caldera of Syrtis Major Planum with a velocity of 72 km/sec and an angle of 45 degrees. The impact is unseen, as at the moment of impact, the entire area disappears in an unimaginably bright flash outshining the sun by several orders of magnitude. The flash, over the course of several seconds, morphs from pure light into a fireball extending 550 kilometers in every direction from the point of impact, with a maximum temperature of 6,000 kelvin which slowly drops over the span of several minutes. Hundreds of thousands of cubic kilometers of rock and ice is instantly vaporized or melted, with roughly half of it being ejected out of the crater on the back of an atmospheric pressure wave that, even in Mars' thin atmosphere, is enough to knock people over 3,000 kilometers away. A crater is excavated whose final dimensions are 330km in diameter and 2km in depth, and seismic shocks ripple around the planet, strong enough to shake even well-built fortifications at the very edges of the 2500km evacuation site, and causing a sympathetic marsquake of magnitude 6.2 at the impact's antipodal point. From 3,000km away, the fireball is invisible, but the entire sky glows with the force of several suns while the fireball continues to rise and eventually fade. ''

''Fifteen minutes after impact, debris and dust begins to fall at the boundaries of the evacuation zone as the cloud of gases, vapor, dust, and debris begins to drift around the planet, beinging with it heat and moisture and sparking torrential rain and heavy snow in several locations around the planet. In addition, temperatures and pressures begin to rise slightly around the planet, and the very fringes of the dry-ice polar icecaps begin to sublimate to darbon dioxide, providing even more gas to raise the atmospheric pressure of Mars slightly higher and warm it up a tiny bit more.''