The order of the planets ranges in distance from the sun starting with the nearest planet to the sun and working outward. If you want to keep track of the order, there is a simple trick for ...

Closest habitable planets are just 13 light-years away Credit: David A. Aguilar (Harvard-Smithsonian Center for Astrophysics) Six percent of all red dwarf stars have an Earth-sized planet in the ...

In addition, the planets will be seen in their proper order from the Sun. The rare alignment has not happened since December 2004, according to Sky & Telescope.

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million years. Uranus and Neptune were next, within 10 million years.