Question: how much does the earth way

Angharad Davies answered on 30 Jun 2012:

I had to look this up, but if you could weigh the world the answer is about 6 sextillion metric tons! And I found out it is gaining weight – every year about 40,000 metric tons – because of bits of debris falling down from space.

Technically, in space the world is weightless as weight is defined as the pull of the earth on an object and the earth cannot pull on itself! So space scientists would call the weight of a planet mass instead.