It is possible to have a larger planet but increasing the size will likely also increase the mass and the gravity. It is possible to mitigate this problem by lowering the density of the planet (example: more water, less crust) but I don't know all the impacts it would have. On another point of view, increasing the gravity makes would also slow down the travellers.

It can't be 10 times larger without killing everyone except if there is a magical explanation.