Probably several tens to hundreds of millions of years following the Big bang. Afterwards, planets formed around stars and became a permanent feature of the Universe.
Yea, because if we don't are calendar would never exist and if it didn't exist we would no what day it was. So thanks to a leap year we have all of that!
i dont know about all dwarf planets but pluto is
Planets dont give off light therefore all planets dont give off its own light
The universe.
Probably, but impossible to tell as we are only just seeing planets within our own galaxy.
im preaty sure they all dont have rings around them
If god didn't exist then the hole world and all the planets and galaxy's would never happen
we wouldn't be posting questions which means we wouldn't exist at all
People really dont no,but my opion is there is only a single moon
A year on a planet is the time it takes for that planet to complete one orbit around the sun. For example, on Earth, a year is about 365 days. The length of a year varies for each of the eight planets in our solar system based on their distance from the sun and their orbital speed.
no
Unicorns are awesome except they dont exist. and no they cant. if unicorns did exist we'd see them flying all over the place. but no we dont. x)