Can we see the past (through black hole)

In this blog, we will discuss about how can we see the past through black hole and here we are not discussing the past like our birth or shorter events but we will discuss about how can we see events like lighten the fire for the first time, abolition of dinosaurs, creation of our solar system or even the time of big bang.

but there are 2 major question

1) can we ever go near or inside of black hole?

2) will we really be able to see the past within the black hole?

For now, I will skip the first question and discuss the second, but before the discussion of how can we see the past, we must understand the basic concept of 'how we see an object'.

Explanation:

In the presence of light, the light waves reflected off from the object reach to our eyes and form an image of that object on the light-sensitive retina at the back of our eyes. The signals are sent to our brain through the optic nerve, and our brain deciphers the information and detects the appearance, location, and movement of the objects we are looking at.

Theory:

Now, from the above explanation now we know that for seeing an object light needs to get reflected from that object, but what if we are able to capture those beams of light and throw it to someone else’s eyes, from the above explanation we can say that the other person will see the exact same image. It will be similar to making a video and watching that event later.

Now Imagine, if we will be able to make a device that can capture all the reflected light from the earth and store it for years so we will be able to see that past event through those beam of light, isn’t it? It will be very similar like making the video of the whole earth at once and watching it later.

But even if we will be able to make such a device, it will start capturing light from now, so how will we be able to see the past events like the birth of the first human or birth of our own earth?

Ok, can you tell me the name of the first satellite?

Yes, it’s Moon.

Sometimes we don’t have to make everything, some times the most complex and useful things are already present in our Cosmos, we just need a better understanding of those things or objects or whatever you want to call it.

So what we want now is something that is storing the light reflected from Earth or other parts of the universe from billions of years, seriously is there anything like that even exist or we are imaging about gods or aliens?

Ohhh wait, there is something that is capturing those beams of light from billions of years, yes I am talking about Black-Hole.

Seriously black-hole, what exactly are black holes, do they even exist?

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.

Yes, they exist, In fact, we discovered one of them in our own Galaxy (Milky Way) named Sagittarius A.

On April 10 – 2019 our scientists were able to capture a blurred image of the black hole proving that it exists.

So somehow if we will be able to see (or visit) inside of a black hole then it is possible to see all those lights or images that black hole is storing for billions of years, we may get more answers then we ever thought or imagined.

Can we go inside of the black hole or will we travel through time if we ever visit near a black hole? I will leave all those discussions for some other time.

But the bad (or good, you decide) news is the closest measured black hole is 7800 light-years away from earth. So even if we will be able to look through it, it will not be able to show the last 7800 years because those beams are still on their way from earth to that black hole.