Pluto
Pluto used to be the smallest planet, but it's not a planet any more! That makes Mercury the smallest planet in our Solar System. The second smallest planet in the Solar System is now Mars, measuring 6792 km across.
Theoretically all the planets of the Solar system were created at the same time from dust caught in the suns gravitational field. That would have been around 5 billion years ago. the trapped dust coalesced into belts which further coalesced into asteroids and planets.
5 billion years ago
Actually Neptune is between the smallest and the largest planet. Because Pluto has been a dwarf planet. The size order of the planets are (from smallest to largest) 1 mercury, 2 mars, 3 Venus, 4 earth, 5 Neptune, 6 Uranus, 7 Saturn and 8 Jupiter.
4.6 billion years ago or 5 billion years if you round up. :)
At 5 billion years ago, the Earth had yet to coalesce into a planet. At 4.5 billion years ago, it had, but was a ball of molten material without land or sea.
It is the second smallest planet in the solar system.
Pluto used to be the smallest planet, but it's not a planet any more! That makes Mercury the smallest planet in our Solar System. The second smallest planet in the Solar System is now Mars, measuring 6792 km across.
For our Solar System the order from largest to smallest is :-JupiterSaturnUranusNeptuneEarth
Impossible to say. The planets of our solar system were created at about the same time. About 4.5 to 5 billion years ago.
Theoretically all the planets of the Solar system were created at the same time from dust caught in the suns gravitational field. That would have been around 5 billion years ago. the trapped dust coalesced into belts which further coalesced into asteroids and planets.
5 years ago
5 billion years ago
About 542 mya ( million years ago ).
it was 1414 years ago
It is 100 years.
5 years ago