reply to post by UFCG2012AFHS
Technically, yes.... the earth is expanding, as all gravitational bodies are want to do (exceptions being stars, who lose mass through solar winds,
surface ejecta, etcetera)
The phenomenon is known in astrophysics circles as Accretion:
IT is one of the primary theoretical explinations for planetary formation, in that gas, dust, rocks, and other matter in space begin collecting
together by their mutual gravitational attraction, and collect into larger and larger masses..... Eventually forming solid rocky bodies.
This process is by no means complete, EVER... although it does decrease in speed as most of the mass in the solar system is collected into the
During the initial formative stages of a solar system, the accretion is quite rapid (in relation to geological ages), and as the total amount of free
matter in the solar system is subsumed into these planets, the rate of accretion slows down to a near crawl.
Furthermore, Hydrogen ejecta from the Sun (Solar Winds) is calculated at about the mass of mount Everest every day.
Some of this mass makes its way to the earth, and increases the mass of the planet, and this kind of thing happens all of the time... even
transmuting elements in the upper atmosphere (Nitrogen to Carbon, for example, or other such elemental transmutations from high energy particle
Naturally, this accretion that I am speaking of is not fast enough to increase the gravity of the planet over a time-scale as short as one human
lifetime, or even dozens of human lifetimes.
Naturally, this process (at current rates of deposition) would take millions of years to make a noticeable difference on the planetary gravitational
well (it's mass, and size)
So, to answer your question, YES the earth is expanding, Yes the gravity is increasing, No, it's not fast enough to have any significant change in
Hope this helps!