Explore the universe

space -time       Space have 3 dimensions and time is independent from space. Everything in space is not stable all are moving with respect to time.          But we don't  say time is actually a dimensions bcoz every dimension made by negative side and positive side and also 0. For example  length is positive, negative and zero so it is dimension. On the other hand time is only positive not negative. space have 3 dimensions and time .so in combination  we say space -time. So actually  we have to study about space - time more than only space.      just imagine..            You throw a stone in pond  as stone touch water in pond as it produce ripples around where the stone touch water  with 0 radius.       As stone going on depth as larger ripples radius  so ripples radius increase with respect to time. Mean space in ripples increase with respect...

           Space(ever quite.....)        Just as there are different types of biped and rocks in the ocean,in same way there are stars , planets , meteor bodies in the space . In space , there are nothing  but some very very very low dense particals.       In space hydrogen  and helium gases in large amount  and other heavy elements (oxygen, nitrogen  etc.) are in very low amount in space.  Because  in the earlier stage of universe,  there are so  only  hydrogen and helium gases. By some process hydrogen atoms able to do fusion  reaction with very high temperature  and hydrogen atoms convert in helium atoms.           But..... It is also possible that maybe helium helium add up and trasfor  in heavy Particals so yes it is.  In the very low persent.        In space there are 74% hydrogen , 24% helium and only 2% con...

 An apple fell down from tree on newton's  head and  result all we know as gravitational Force. Two bodies separate by some distance feel gravitational force but in reality when  mass of bodies  small then thier gravitational Force so weak so we can  not feel this force among us. So gravitational force propotional to bodies mass and reciprocal squre of distance  between them. If u double the distance  Between two bodies so their force between them will be quarter of real distance force. By this force Everything is controlled in universe. Planets and astroids round the sun and moons orbit Their planet and also satelites round the earth  only by this force .           Gravitational force nature attract mass So this process always exothermic process. Gravity also play a great role in build up stars.           Gravitational force depend also their desities.if density goes high so there  force...

Outer space light :  If u want to know about what is light ? What iis relation between light and time ? What is 1light year? ,so this post for you. What is the light? When we think about light primary thought that it is a source by which we can see every -thing  as we want and also a great role in life. Everything depends on light directly Or indirectly . BUT WAIT  What is actual mean of light???? Answer is light is energy. We know our sun has a great stock of hydrogen and also we know that sun's core has a very high temperture enough to generate fusion reaction by hydrogen add up and made a helium atom . This reaction example  of exothermic reaction which produce a more energy . This energy in range of light and this energy we use ......    Light have approx 300000000 meter per second velocity and as we see it is finite.     We know no one can travel fast then light.light cover sun to earth distance ...

We live in earth (most suitable planet ever known) which is the member of the sun family. Very earlier it was say earth is center of all things and all other things round aboutearth.but as time goes we find actual picture of our solar system that sun is center and all planet round about the sun. Just think🤔 1.How did all these planets come into existence? 2.how did sun get hydrogen for fuel? 3.are star only a part of decorate sky? 4.why is life on earth and if life is here so what possibility to make human beings like us?it is possible that nature made another species instead us ? so why we? 5.where astroid belt came from? 6.is earth orbit is perfact for life? & many more questions rising when we just think ......