Expamding earth - or not

[Zork]

Does the Earth generally increase in size, through collection of space matter, or decrease due to 'stuff' being released into space?

[Zork]

Expanding doesn't have a M in it !

[kuhugaq]

nothing flies off from the surface of the Earth, escape velocity is about 7 miles per second, or 25,000 miles per hour.NASA is the only exception.

[bernardo]

Hundreds of tonnes of stuff fall to Earth every day in the form of dust, meteors, meteorites etc. Only tiny amounts are ever sent up into space by rocket launches. Therefore the Earth is increasing.

[mibn2cweus]

One estimate is that the Earth currently accretes approximately 15-40 thousand tons of cosmic debris a year (50-100 tons per day).
At this rate the Earth will double in mass (not in size) in several million, million, million (5^18) years.

[Zork]

thanks