Quote Originally Posted by Alusair View Post
I thought the moon was actually very gradually drifting farther away from Earth.
You are right.
http://curious.astro.cornell.edu/que...php?number=124
I heard in the TV that moon is moving away from the earth towards the sun. Why is that happening? And when was this exactly discovered?

The Moon's orbit (its circular path around the Earth) is indeed getting larger, at a rate of about 3.8 centimeters per year. (The Moon's orbit has a radius of 384,000 km.) I wouldn't say that the Moon is getting closer to the Sun, specifically, though--it is getting farther from the Earth, so, when it's in the part of its orbit closest to the Sun, it's closer, but when it's in the part of its orbit farthest from the Sun, it's farther away.