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Scientists do NOT Believe anything.
They use known information and theories that are supported by some evidence to try to make reasonable explanations. Some people also it was created by god.
Answer
Earth formed about 4.6 billion years ago along with the other planets in this Solar System. Heavy elements (those that are present in the current Solar System) had to have been formed by then, perhaps as a result of a pre-Sol supernova (where Sol is the name of the star at the centre of this Solar System, also known as the Sun). The heavy elements would have accumulated together via gravity. The larger the collection of elements, the more would have been attracted (the greater the mass, the greater the gravity, or, within the talk of General Relativity, the greater the space-time warpature). The collection would have continued via gravity, forming stones, then boulders, then meteor-sized objects. The coalescence of these meteors would have formed items as massive as planets, such as the Earth.
This is the story science has managed to envisage so far.
Wiki User
∙ 13y ago
Hussein Zreik
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Why is earth is a unique planet in our solar system?
Up to now, Earth is the only planet in our solar system that can sustain life as we know it.
What planet do we know the most about other than earth?
Pluto
What evidence did scientists use to figure out that earth inner core is solid rock?
They do not have evidence. In fact most pf things are not even true. The only thing they say they did was put a stick on the ground and with a shockwave they knew what was inside the earth. My opinion is that the core is not what scientists say it is. Due to the fact that we know more about the moon than our own planet.
What is the life span of the planet earth?
Planet Earth has existed about as long as the Solar System - something like 4.6 billion years. For the future, it is harder to know how long it will last. In a few hundred million years, it is expected to get too hot for life to exist on planet Earth, but the planet will continue existing. In 4 or 5 billion years, Earth will ultimately be swallowed up by the expanding Sun.
When do scientist believe the earth was formed?
Scientists theories lead to knowing that Earth was made up about 5 billion years ago. The sun was a swirling cloud if gas and dust. Soon the cloud started to flatten out. then hydrogen and helium filled up the flat cloud and our sun was born. the planets formed from the left over matter.
What are the planet that human being can be possible to live aside from earth?
The planet human being's can possibly live on besides-planet earth, Well scientists don't know for sure because scientists are not always correct no offense to scientists though. Well that's my answer!
Why do scientists think the earth is the only planet to support human life as you know it?
Not all scientists believe this. The topic of Earth being the only planet in the known universe to support life has been and still is a heated debate amongst many scientists.
Is the earth they only planet you can live on?
So far as scientists know, Earth is the only habitable planet in at least our solar system. The universe is far too expansive for them to know in regards to the entire thing.
Do scientists know how the planet Earth started?
No, but there are many theories. The big bang, God, and many more.
Why do scientists want to know whethter life did or did not exist on mars?
Because Mars is the closest planet to Earth
How you come to know about life existing on earth in past?
People come to know about life existing on planet Earth in the past by studying bones and fossils. These are kept in a databse and are studied by scientists.
How long ago did the first plant exist on earth?
i think that the first planet existed 4.7billion years ago. Because the Sun's age is thought to be 5billion years ago and the earth 4.5billion, scientists know that Earth was not the first planet.
What planet do scientists know little about?
Pluto
Why do scientists believe that earth is the only planet that can sustain life as you know it?
You need water to live and other planets don't have water
What is the significance of planet earth?
Planet earth is the only planet that we know of that has life on it.
What planet can you breath on?
As far as we know, only Planet Earth. There may be another planet that we don't know of though.
Why do scientists believe earth is the only planet with life as you know it?
Earth is the only planet known to have life on it, however with the vastness of space the likelihood of life not existing anywhere else is astronomically low. We just havent found it yet.
