Recent content by Ravi Mandavi

I live in small town of India with small light pollution but few away km. from my house there are some places with nearly zero light pollution, so not much concerned about light pollution.

Hello all, i am beginner in astronomy and want to buy a telescope (which will be my first) but don't know much about it. i am seeking for telescope to see up to nebulas and galaxy, i found some telescope on one online site, they are-...

@chepied and darkith thanks guys it really helped to improve my knowledge

additional question : how can we predict or know that xyz planet is a Earth like planet or having a Earth like condition, when we are not abl to see it directly (if i am not wrong) ?

Hawkings shows are not standard astronomy show, it is more like imaginary science

where did you read

what i got is this- http://metaresearch.org/cosmology/speed_of_gravity.asp According to it gravitational wave's speed faster than light, though i don't think so and feel its rubbish.

Yes, now i got it thanx

I got somthing but not fully, if we talkd about gravitation force acting on moon due to Earth then how can we justify that it is consevative force?

Hello frnds, i understand what conservative and non conservative force are but i didn't get it properly with practical example. so any article is there which explain it properly with practical example and in easy way, i searched but didn't get any article that satisfy me.

Thanx

So after many million year we may see stars in anyother position? I mean they leave their respective constellation?

In our milky way, do all stars have same revolving speed? This Question is in my mind because we always sees that all star are always in same position with respect to other, i mean if take an example of orion constellation then it seems that betalgeous is always in a same position with respect...

me too from I.T. background and decided to go for astrophysics

I think iron absorb energy for further reaction