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How Earth Can Beat Invading Aliens

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 titanic1    223



Believe it or not, planetary defense is a real part of space research and exploration — albeit in terms of protecting the planet against natural threats, like asteroids, comets, surprise solar flares, etc. For NASA, other space agencies around the world, and private companies, planetary defense is basically limited to a discussion of asteroid impact avoidance and deflection, and the development of technologies that allow us to track near-Earth objects that might pose a threat should their travel path ever line up with ours. To that end, NASA has been bolstering its efforts to improve instruments designed to track such rocks zipping through the solar system — most notably through the recent opening of the Planetary Defense Coordination Office, to better study and characterize different near-Earth asteroids and comets and predict their orbits around the sun in relation to Earth.


Tracking technologies, like the Wide-field Infrared Survey Explorer space telescope, would let us know if an alien battalion were en route to Earth long before it reached the planet — provided the aliens were in a pretty big ship and traveling slow enough to give us time to parse the patterns. The issue with WISE, from a strategic defense perspective, is just how easy it would be for aliens to destroy. It is a scientific instrument and, as such, not designed to be combat ready.

Unfortunately, we still have no actual way of engaging with an object that’s on a crash course for a pale blue dot. Under the asteroid-focused planetary defense model, NASA is actually supporting a few off-the-wall projects with a bit of R&D funding, such as the gravity tractor. But this isn’t technology we could use to actually defend ourselves against creatures with superior ships. The only technology we have that can really do that is nuclear bombs.

Whether our lives are threatened by an asteroid or extraterrestrials, bombs are likely the best answer we’ve got. If it comes down to saving humanity, you better believe we’ll be launching nukes straight up.


Of course, this is easier said than done. The problem, as the aforementioned movies each discussed, is that you can’t simply launch a nuke or 12 straight into an asteroid. They’ll barely make a dent into the rock, and will hardly affect the trajectory of the damn thing. When it comes to alien invasion, we might have better luck, since a spaceship would need to slow down upon approaching the planet to ensure its safety. At deceased speeds and with a structure that would presumably facilitate interstellar travel (i.e. made to be lightweight with a relatively hollow interior), an alien ship would be a lot more vulnerable to damage by nuclear weapons.

Unfortunately, if an alien civilization is capable of waging wars light-years away from its home, it’s probably already found a way to mitigate or even totally offset damage by a conventional bombs. We’d have to find a way to crack our way in and blow the ship up from the inside.


Because of other more urgent threats to our existence, defending the Earth from a possible attack by an extraterrestrial invasion is not a high priority. Until we get rid of the thousands of nuclear weapons on our planet, the likelihood of us blowing ourselves up is much greater than the chance of some aliens doing that. But imagine it is the year 2100, and man has removed the most urgent short-term threats to his existence, by solving the problem of global warming and eliminating the threat of a nuclear holocaust. We might then look at reducing the long term threats to mankind, including the threat of an alien invasion. What technologies might we use to defend ourselves from an alien attack? Below is a list of some of the technologies that could be used.


1. Defensive Space Ships

A defensive space ship is probably the first thing that comes to most minds when they think of defending Earth from alien attack. It is easy to imagine a space ship armed with some kind of laser cannon or guided missiles or even conventional cannons. Such a ship could move close to any invading alien ship, and launch an attack against it. However, such ships might not be the most effective way to defend the planet. The hot rocket exhaust of a spaceship gives off an infrared signature that would be very easy for any invading alien ship to detect. It would probably be very easy for an alien space ship to detect some other ship that was approaching it, and launch a counterattack that would stop it.

2. Earth-to-Space Ballistic Missiles

This type of defensive weapon would be easy to construct using technology only slightly different from existing intercontinental ballistic missile technology. Instead of traveling from continent to continent, the missiles would travel from the ground to an orbit around our planet. The missiles would be designed to blow up a nuclear bomb near an alien spacecraft that had started to orbit our planet. The weakness of this technology is that the hot rocket exhaust of such a missile would give off an infrared signature that would be very easy for an alien ship to detect. So an alien ship might be able to detect the missile's launch, and blast the missile into pieces while it was rising through the atmosphere.

3. Orbiting Nuclear Bombs

There is currently a treaty that prohibits placing nuclear weapons in orbit. But if that treaty could be modified, we could put into place a simple and reliable system of planetary defense by placing a host of hydrogen bombs at various different orbits around our planet. If we were then attacked by an alien ship, we could simply send a radio signal causing the satellite bomb closest to the ship to explode. That would give no warning, and would therefore be hard to defend against.

For the other methods read: https://futureandcosmos.blogspot.ca/2013/06/the-top-7-ways-of-defending-earth-from.html

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 roamer    721
4 hours ago, titanic1 said:

Whether our lives are threatened by an asteroid or extraterrestrials, bombs are likely the best answer we’ve got. If it comes down to saving humanity, you better believe we’ll be launching nukes straight up.

The military mindset at its best.

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Invaders from space would be Project Blue Beam.

Aliens have always been here. Bill Cooper wrote about them before he was gunned down by police. 

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