B The universe is incredibly vast. The diameter(直径) of the observable universe is estimated to be about 93 billion light years across. With just our eyes, we can generally only see a few thousand light years worth of distance though there are some objects we can see that are much furthe...
Our galaxy is approximately 100,000 light-years from edge to edge. It would take longer than the age of the entire universe for us to launch a camera outside the galaxy far enough to take the image; it would then take many millennia for the radio waves to travel back to us with the ...
Scientists can only see so far before they run into the edge of the universe. Will we ever know if anything lies beyond?
googolplex is an extremely large number, equal to 10 raised to the power of a googol. a googol is 1 followed by 100 zeros. so, googolplex is 10^(10^100). it is an unimaginably huge number that surpasses the total number of particles in the observable universe. what is the difference...
Level One says that a parallel universe is a copy of our universe somewhere else. However, it is too far away for us to get to. Our observable Universe is 46 billion light-years across, based on the distance from which the furthest light has travelled, which has taken 13.8 billion years...
A Googol is already bigger than the number of elementary particles in the known Universe, but then there is the Googolplex. It is 1 followed by Googol zeros. I can't even write down the number, because there is not enough matter in the observable universe to form all the zeros:...
So the fundamental truth is that energy will always flow from a place where the energy density is higher to one where it is lower, to balance the Universe. This is the universal entropy heat death theory. Not coming any time soon, as there is lot of localised energy hot spots around the...
Apolipoprotein E4 (APOE4) is the strongest known genetic risk factor for late-onset Alzheimer’s disease (AD). Conditions of stress or injury induce APOE expression within neurons, but the role of neuronal APOE4 in AD pathogenesis is still unclear. Here we report the characterization of neurona...
Image credit: NASA, ESA, S. Beckwith (STScI) and the HUDF Team. And yet, that's just theobservableUniverse! There are good reasons to believe that the Universe continues on and on beyond the limits of what we can see; the question is,how fardoes it go on? Forever? Or does it clos...
The only problem was, it went and got my conscious mind thinking about stuff it really oughtn’t be thinking about. . You know, like, could it happen in real life? That joy, that perfect bliss that happens when I look up and see you smiling, ...