Structures of galaxies Clusters

In the universe Galaxy clusters are huge structures. Galaxies emit a lot of gravity. These causes nearby galaxies attract each other and are merged to form clusters. Our galaxy, the Milky Way, is part of a small cluster called the Local Group . Within a cluster, galaxies rotate around each other, and even frequently collide. The size and mass of the cluster galaxies varies with the form, but the distance between one end and another is always several million light years.

Enormous catalogs

Through the ceiling catalogs are lists of deep sky objects that occupy a fixed position in the sky. They are very useful for amateur astronomers, because they collect the main galaxies, nebulae and star clusters that can be seen with a telescope medium.

In the best known are: Messier catalog: the most famous and the first to be published. He was drafted by the French astronomer Charles Messier in 1769. It brings together 110 objects numbered M1 to M110, in the order in which the Messier discovered while watching the skies for comets.

The survey Ultra Vista and reveal more than 200,000 galaxies

These new images of a small part of the sky, which may go unrecognized, the survey Ultra Vista and reveal more than 200,000 galaxies. It's just a part of a large collection of images of all the polls VISTA, fully processed, now THAT is making available to astronomers around the world. Ultra Vista is a hidden treasure that is being used to study distant galaxies in the early universe as well as many other scientific projects. 

Where is the center of the universe?

Where is the center of the universe? Well, the answer is confusing: nowhere in particular and also in all...

To understand these things have to make one thing clear about the famous Big Bang: the famous big bang matter filled the empty space, in fact it was a very rapid expansion of space itself, which before the "bang" was fold completatamente on itself at a point of infinite density that scientists call unique . 

The Universe

Galactic survey

At the beginning of the mission, Spitzer will hold a series of imaging surveys in the mid and far infrared. Census Deep and a small region of space, including one centered on the Hubble Deep Field (English) , study the young and distant universe with redshifts of about 5, which corresponds to about 12 billion years.

Every planet must orbit around a star

In recent times the wandering planets, which is the name often these unique worlds without star have gone from a rarity bordering on the impossible to be an unexpectedly abundant class of planets.

 Fresh investigate now provide an new revelation: Not only are there no star planets, bound only to its galaxy, but even without galaxy may have planets. These amazing worlds, formed within a galaxy may leave due to move at a colossal speed, and could make the trip alone or with their star.

Infrared Astronomy

The technical approaching of Spitzer is attached in four basic physical values that define the importance of IR in the investigation of astrophysical phenomena. The infrared region is part of the electromagnetic spectrum and ranges from 1 micron (near infrared) to 200 microns (far infrared). Human eyes are only sensitive to light between 0.4 and 0.7 microns.

Infrared observations expose cool state of matter.

Solid objects in space - from the size of a grain of interstellar dust (less than a micron) to the giant planets - have temperatures ranging from 3 to 1500 degrees Kelvin (K).