Year 2100, ISRO, s robotic probe is conducting experiments in keiuper belt outside the solar system. Suddenly the probe detects some unusual signals. Scientists at ISRO confused, they have no idea where did these signals came from. The disturbance in communication between ground station and robotic probe is increasing. All the radar stations are pointed in the direction of the robotic probe. Within matter of minutes Scientists found huge electromagnetic wave patterns. ISRO concluded probably some kind of communication system, but who are they? The whole world turned towards that what they found was shocking news. A fleet of alien crafts rapidly approaching earth, is this is the end of Homo sapiens?
The above described scenario is not unlikely. In this vast universe there is all the possibility of an advanced civilization. What we do if that alien civilization attack us. In the present technological advancement is not enough to counter an alien threat. But in the future surely we develop something to counter an alien invasion. Here is a brief idea about countering an alien attack.
Every enemy has a weakness we should find out what it is. To repeal an alien attack we need three things.
1)Intelligence: we need to know who they are , what their strength and weakness
2)Defense : we need to reinforce the lines of defense to protect earth
3)Attack strategy : if they do land on earth we need weapons & strategy to counter them
We need an early warning system to detect the aliens. Radars are the best choice for that. We need to monitor the entire solar system; the intruders will come in any direction. But there is a problem the area of solar system is 6*10 26 sq miles. We can’t monitor this much area using the radar systems on the earth. But there is a solution. The outer edge of the solar system is the aur cloud a region of huge comets. We can use those comets as radar stations & can create a network of radar system that can monitor the entire solar system and can monitor the intruders in every direction.
Still there is some problems these alien crafts may be stealthy even humans are using stealth aircrafts , ships etc. maybe we can find the larger mother ships but it is not easy to find the tiny alien probes dispatched from the mother ships especially most of the outer space radars using high frequency electromagnetic waves. Hmm we need something else to find the alien ships. To detect the stealth alien ships we can use another frequency called X-rays. X rays are very small i.e.; they are billions of times smaller than the radar signals they can pick up an object in the size of sand X rays are ideal solution for finding alien intruders and also we can create ultra sensitive X ray scanners on board robots and place them in aur clouds & can fly through the comets and scan for tiny alien probes.
So now we can detect aliens but to stop aliens from invading us we need some serious fire power better than anything currently we have. There is one suitable place for humans to setup their first line of defense ‘the asteroid belt’. But what will we use as a weapon against an advanced civilization our missiles and bombs are just toys for aliens. So then what we are going to use against aliens the answer is ‘Lasers’.
The advantage of laser is we can pack unlimited energy into a laser beam and can create super powerful laser cannon and we can use this to take out small alien probes. To power these laser canons we can use the water to fuel fusion reactors. The water is present in the asteroid belt in the form of ice. But it is not much effective against the large mother ships of aliens to destroy them we need something bigger. How about detonating 1000s of nuke bombs directly at the alien ships. It looks a like a great idea but wait it’s not a good idea in the outer space. The nuke explosion in outer space is not that much dramatic cos in outer space there is no blast or shock wave the reason is very simple there is no air to conduct a blast or shock wave surely still have radiation but it is not much effective. So what’s next?
There is another possibility that we can detonate these nuke weapons just outside the earth’s atmosphere. But for what? A nuke blast creates an EMP (Electromagnetic Pulse) a wave of invisible particles. These particles are created by the collision of radiation with the air molecules. It is lethal to every electronic equipment. It’s a tricky tactics but it will work. It creates a protective layer of EMP around our planet alien ships should be dead in their tracks.
Think what if the aliens are so much advanced they can overcome the EMP protective layer and fly the earth with their advanced weapons. Now we are in deep trouble. What would we do now? How can we stop them? The best strategy is to target the alien beings itself not their machines. Find the weakness of the aliens to defeat them.
Life sharing something common and that is water. Water is a fundamental medium for life weather it is an earthling or an alien. We can use this key factor to develop a weapon that can defeat alien. An ordinary projectile like bullet bounce back from armor of an advanced alien. Microwave beam weapon is the suitable choice to take on an alien. Micro wave beam weapons heat up the water molecule & make them vibrate & they penetrate right into inside of the alien. Now if we heat enough water molecules pump up the energy then water starts to boil then the alien starts to boil from inside. The alien then begins to explode (remember micro wave oven). We can make a rail gun using nano batteries to generate micro wave beam. This weapon can use against an individual alien but to stop an army of aliens. We need more & more microwave guns.
Hand to hand combat between aliens and humans are also probable. Ok let’s start to practice martial arts for the liberation of our mother earth.
To defeat these aliens we need more and more information about the aliens. How much info we get that much benefits to counter them. For that we can send thousands of small flying robotic sensors to get the info. Soldiers and tanks fitted with smart skins packs with one molecule thick sensors can be used to collect information about their weapons systems & strategy when they attack. And using this info we can extract the properties of beam & chemicals of the explosives aliens used and also help us to find the weak spot in the alien arsenal. Using quantum computers & a team of analysts in the underground bunker their role is to study the every details of attack. Aliens are far superior in their technology they will have machines weapons that are advanced far beyond anything we can imagine so we need to collect as much data as possible for a counter attack. This will give us a fighting chance against aliens to liberate our planet
Source - Dr. Michio Kaku , Alien Invasion National Geographic