We Will Destroy Your Planet Read Online Free

time tunnel, or a time corridor, and in fact is the closest approximation to what some with a vested interest in time travel call the time vortex.
    It’s entirely likely, however, that you have your own technological means of travelling through time; the important thing is the destination, and to that end, this guide is geared towards Earth in the early 21st century, by the standard calendar (one of many) used on the planet.
    The most important thing to remember is to make sure not to encounter your own selves, especially if you are only travelling within your own lifetime, or have made the time journey more than once. This can be a big problem, not just for the creation of paradoxes, and potentially alternate timelines, but also because of the danger of shorting out the kinetic energy stored in temporal distances between yourselves.
    Or, to put it the Australian way, zap.
DEFENCES
DEFENCES OF THE EARTH AGAINST SPACEBORNE ASSAULT
    None. Zero. Zip. Nada.
    Yes, you read that right. Amazingly, the planet has no energy shielding, no starships, no minefield, and no detection or early warning grid for vessels entering the system. What little – and it is very little – planetary early warning and defence planning programmes the Earth has are geared solely to the problem of near-Earth asteroids, which could easily prove a danger to cities, nations, and ultimately native life itself.
    This is another reason why the Earth makes such a tempting target; Although the dominant species is known to be aggressive and stubborn, they have no defences against incursion either from other spatial locations, alternate dimensions, or different eras. The doctrinal requirement for surprise is therefore a relatively easy one to fulfil.
    It is true that humanity has missiles capable of being fired at targets in space, and these missiles are the limit of Earth’s technology in this regard. While it is certainly true that Earth’s forces have quite perfected the reliability of missiles for use against land, sea, and atmospheric vehicles, and have expanded into the matter of orbital rockets and even anti-satellite weapons, their missiles are all powered by chemical motors of one kind or another.
    Whether liquid fuelled or solid fuelled, rockets all depend upon burning chemical compounds to institute a Newtonian reaction, forcing exhaust out the back in order to propel the missile forward. Although ion engines have been built on Earth, they are used only for manoeuvring of satellites, and not for main propulsion, because they simply are not fast enough. Even the rockets, however, do not have sufficient speed and manoeuvrability to be a significant threat to navigable spacecraft. Any rockets or missiles thus launched at your ships or landing craft will be seen coming, if you’re paying attention, and easily destroyed or avoided.
    Experiments with energy weapons, such as X-ray lasers, are currently at a very early stage of development, and very much confined to static installations. They are not manoeuvrable, and are of no threat to your forces.
    All that said, the Earth does in fact have one effective, if entirely accidental and coincidental, defensive barrier that your starship navigators must be aware of: space junk.
    The planet is surrounded, in bands at various heights and orbits, by clouds of debris left by previous space missions and satellite collisions, which have formed into belts of dangerous metal, plastic, and ceramics. The Earth’s spaceflight authorities admit that there may be tens of millions of pieces of debris in orbit, ranging from dead satellites and rocket fuel tanks weighing several tons, down to fragments of solar panels and foil insulation, and even paint flecks, just millimetres across. Even human space travellers have discovered that all these fragments, regardless of size, are dangerous. A couple of decades ago, human space vessels could simply move out of the way of approaching debris, but now there is