No. The estimated age of the sun and planets is somewhere less than 5 billion years,
whereas
we can see objects in the universe whose age is estimated at 13.5 billion years.
All of the inner planets are rocky planets: Mars, Earth, Venus, and Mercury
All except the inner two.
The universe is composed of various elements such as hydrogen, helium, oxygen, carbon, and nitrogen, among others. These elements are fundamental building blocks that make up everything we observe in the cosmos, from stars and planets to living organisms.
They thought it could not be taken serious.
Earth is the fifth largest of the eight planets of the Solar System
The oldest stars in the universe are typically red or orange in color, indicating that they are cooler in temperature. These stars are often referred to as red dwarfs and are among the first generation of stars formed in the universe.
Considering that earth is not the only planet in the universe and that are many other planets in this same universe, it would almost be egotistical to believe that we are the only inhabitants in the universe on this single planet called Earth. As our technology has advanced to the point of visiting other planets, it would also be egotistical to believe that we are the only beings in the universe with the intelligence to travel among the other planets. It makes sense, therefore, to assume that yes, there could very likely be aliens on the earth either in the future or possibly even in the now.
All of the inner planets are rocky planets: Mars, Earth, Venus, and Mercury
All except the inner two.
It is included among the inner planets.
Among the planets currently considered as "true planets", is is Neptune.
venus
The universe is composed of various elements such as hydrogen, helium, oxygen, carbon, and nitrogen, among others. These elements are fundamental building blocks that make up everything we observe in the cosmos, from stars and planets to living organisms.
They thought it could not be taken serious.
Earth is the fifth largest of the eight planets of the Solar System
Astronomy is the study of planets and stars, among many other things.
We cannot be SURE of anything concerning other planets until we go there and look for ourselves. However, it _seems likely_ that there is "life" of some form on other planets, whether that's microscopic life in the dirt of Mars or in the oceans of Europa, or on one of the TRILLIONS of other planets. Only 40 years ago, there were debates among astronomers; were planets common, or was it wildly improbable that there were so many different planets orbiting the Sun? Now we know; planets are probably as common as dirt.