Jupiter
Venus is closest to earths planet size.
Mercury is earths brother planet because Venus is earths sister planet.
1300 earth can fit in it
It is Venus.
It has no solid surface. It would hold 9 and a half earths on its face! Looks a bit like a squished ball.
9.8
Core
I believe there are because were not the only planet
Jupiter is much larger than the planet Earth, so it would not fit into Earth even once. Conversely, 1300 Earths can fit inside Jupiter.
Venus is known as Earth's sister planet.
Yes Earths Moon is a rocky planet
Venus.