no, it was lots of small pieces of rock and dust colliding together making large planets, and moons
The sun is not a planet; it's a star. However, I think I heard once that the mass of the sun is about 98% of the mass of the solar system.
Mercury is the smallest planet in our solar system. Pluto might have been the smallest planet, but it has now been reclassified as a "dwarf planet." The smallest planet in our solar system now is Mercury. There might well be billions of smaller planets outside for solar system. The smallest exoplanet found so far is about twice the size of the Earth.
The planet that you may mean was the Planet Pluto, which was recently reclassified as a Dwarf Planet. It is also believed by many that what is now the asteroid belt, was once a planet.
Pluto was once considered the ninth planet in our solar system, but it was reclassified as a dwarf planet in 2006 by the International Astronomical Union.
There is 8 planets in our solar system. There was once 9 before Pluto was reclassified as a dwarf planet.
uranus is the coldest planet in the solar system. uranus was the first planet descovered in the modern age. uranus has only been visited once
Pluto is no longer considered a planet by the International Astronomical Union; it is classified as a dwarf planet. Among the eight recognized planets in our solar system, Mercury is actually the smallest.
No, Pluto is not a country. It is a dwarf planet located in the outer regions of the solar system. It was previously classified as the ninth planet but was reclassified in 2006 by the International Astronomical Union.
Jupiter is the fastest rotating planet int he solar system.
Jupiter is the biggest planet. The order is as follows: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune (Pluto)* *No longer officially classified as a planet. Pluto's orbit overlaps with that of Neptune. On some occasions, about once every 2 centuries, Pluto is actually closer to the Sun than Neptune - usually for about 10-20 years.
Pluto was once considered the 9th planet in our solar system. In 2006, the International Astronomical Union (IAU) redefined what a "planet" is, thereby resulting in the reclassification of Pluto as a dwarf planet.
Before anybody can touch that question, you have to explain what you mean by 'aligned'. Every planet in the solar system is on the same line from the sun that the Earth is on at least once a year. One or two of them do it more than once a year.