the answer is "first".
penis
first era was the Precambrian
Scientist theorize that a planet-sized object collided with earth and the moon formed
Scientists believe that lightning is formed when electrical charges build up in storm clouds. As these charges separate, a large electrical potential difference is created between the cloud and the ground, resulting in a discharge of electricity in the form of lightning. This discharge allows the built-up energy to be released in a dramatic and visible way.
Scientists hypothesize that the sun and planets formed from a giant molecular cloud of gas and dust in a process called accretion. They believe the sun formed at the center and the planets accreted from the disk of material surrounding it. This is known as the nebular hypothesis.
Far or near, all galaxies were thought to be formed in the first half billion years of the formation of the universe ... that is, about 13 billion years ago. Note that we're seeing the distant ones in a younger stage of development.
Scientists believe that galaxies were formed from the gravitational collapse of large clouds of gas and dust in the early universe. As these clouds collapsed, they formed smaller structures that eventually evolved into galaxies. The exact mechanisms of galaxy formation are still an area of active research in astrophysics.
penis
Galaxies. They are just about the same now as they were then. 14 Billion years ago, astronomers believe that the "Big Bang" created matter from energy, which is how they believe galaxies were formed.
con las manos
prokataryotic and autotrophic
They believe the planets formed from a disc of gas and dust called a "protoplanetary disc".
Galaxies formed from dust, matter, and energy that formed from the explosion of the universe.
Birds, which are not just considered descendants of dinosaurs; they are dinosaurs.
There are more quasars in faraway galaxies, i.e., in the distant past.There are more quasars in faraway galaxies, i.e., in the distant past.There are more quasars in faraway galaxies, i.e., in the distant past.There are more quasars in faraway galaxies, i.e., in the distant past.
They actually are. Galaxies that are only millions of light years won't show much difference - that's too short compared to the age of galaxies. But there is definitely a trend in galaxies at distances of billions of light-years. Their metallicity is lower (i.e. they have had fewer supernovas to pollute the interstellar gas), and there is a greater percentage of disc galaxies (elliptical galaxies are thought to form by the collision of disc galaxies).
Scientists believe that the solar system formed about 4.5 billion years ago.