The formation process of the Moon is a very admirable 4 Billion Years Ago

The theory of 'Giant Impact' is a hypothesis how the process of formation of the moon. Scientists theorize, the Moon formed by joining the pieces of the Earth is broken when it collided with a young celestial bodies the size of the planet Mars.
112 005 giant impact theory of how the formation of the moon 300 225 The process of formation of the Moon 4 Billion Years Ago

Any evidence supporting this hypothesis are examples of rocks taken by astronauts during a visit to the Moon. Of rocks, indicated that the Moon's surface before it is liquid and the possibility of having a small core of iron with a lower density than the Earth.

The celestial objects hit the Earth known as Theia, named after the Greek goddess, who is the mother of Selene, goddess of the Moon.

According to the Giant Impact theory, Theia formed along with lainnay planets in the solar system some 4.6 billion years ago. He circled the Sun in roughly the same orbit with Earth about 60 degrees ahead or behind the Earth.

Stability in circling the Earth and then disrupted because of Theia and grow beyond the maximum limit of 10 percent the mass of planet Earth. As a result, the force of gravity makes Theia abandon positions and close to the Earth's orbit and collide with each other.

According to astronomers, a collision between Earth and Theia took place around 4.53 billion years ago, or about 30 to 50 million years after solar system formation. However, from recent evidence, indicated that the collision took place more slowly, which is 4.48 billion years ago.

Record telescope intergalactic collisions

Spitzer Space Telescope and Galaxy Evolution Explorer spacecraft (GALEX) managed to capture the image of intergalactic collision from start to finish. Researchers Harvard Smithsonian Center for Astrophysics who did this observation, Lauranne Lanz, presented the image of the American Society Meeting in Boston.
Record Telescope 1623109620X310 intergalactic collision

Two colliding galaxies are NGC 935 and IC 1801. Observational astronomers showed that when two galaxies collide and form larger galaxies, destruction spurred the formation of gas and dust clouds. Furthermore, collisions will spur the formation of more stars.

"This image is the first step to know the story of how galaxies form, evolve, and evolve," said Lanz. According to him, this picture gives a better understanding of what might happen when the Milky Way and Andromeda galaxies collide 5 billion years.

In image retrieval, GALEX ultraviolet rays emit a role to portray the young stars in blue. While the Spitzer telescope which emits infrared light illuminates the heated dust in red. Alloys are two tools that generate rich data.

Lanz said that in every collision of galaxies, the resulting number of stars will vary. Now, he is examining the factors that influence the variation. Lanz also worked hard to test understanding. "Our understanding will really be tested again at 5 billion years the Milky Way had crashed," said Lanz.