whenever I see nasa's space pictures I saw them colourfull but on other things like the video of astroids hittng the planet looks like black and white , why is it so?
I tried things on nasa website, they say bla bla about our eye sight and earth environment and light 7 rays. I don't understand.
my question is as we can see the sun with naked eye, it is older than 8 mintues (calculated as per light travels in one year). which means if we see the current space or maybe a galaxy or stars they are older to recent time so how can we see the recent activity of stars and galaxy? Are we looking old stuff of space ? Can we ever look at the newer stuff of space ?
What if aliens attacked on earth ? I know there two possibilites that will they attack or friends? Let's take one point of view, if they attack what will be the way they choose to attack and where and how ? and the damage