ما چیز زیادی از جهان هستی نمدانیم

 مطلب زیر را در یک سایت علمی خواندم که بنظرم خیلی جالب آمد که گفتم در  اینجا درج کنمم که مورد استفاده دوستان هم قرار بگیرد. اگر فرصت شد ترجمه آنرا هم اضافه خواهم نمود

We barely know anything about the universe.

But as far as we know, it turns out that roughly 68% of the universe is occupied by the Dark Energy and 27% by the Dark Matter.

Everything else that we see( Moon, Stars, Planets) are Normal matter that is just about 5% and within this there are about 20 trillion galaxies. And scientists are eagerly searching for other habitable planets and lifeforms that might be lurking around somewhere.

And they are constantly searching for it in our own galaxy.

There are anywhere between 250-400 billion stars in the Milky Way and an estimated 100 billion planets. Around 1 in 5 stars are like our sun, and astronomers have estimated that about 22% of them have planets the size of Earth in their habitable zone, where water can exist as a liquid and this means that there could be 8.8 billion planets within the galaxy capable of supporting life (not accounting for composition of the planet or its atmosphere).

Though we have found some seemingly habitable planets in the name of Kepler 162f and 452b, they are at least a 1000 light years away and the fastest flying ship we have got so far is just around 16 km/s. So how the heck are we going to get there? The famous quote by Arthur C. Clarke says- “ Either we are alone in the universe or we are not, both are equally terrifying”. We will really need some serious developments in space crafts or the other beings out there can find us if there are any and they are more capable than us. But the point is the fact that there might be other beings or there might not be any, might just be the most disturbing thing in the universe.