Skip to main content

What is Galaxy in simple words | aliens explorers

What is the definition of a Galaxy?


                             Created by hubble heritage team, NASA
                   Majestic spiral Galaxy NGC 4414


A galaxy is a huge mass of stars, nebulae, and interstellar material. The smallest galaxies contain about 100,000 stars, while the largest contain up to 3000 billion stars.

There are three main types of galaxies classified according to their shape; elliptical, which are oval-shaped, spiral, which have arms spiraling outwards from a central bulge (those whose  arms spiral from a bar-shaped bulge are called spirals) and irregular,
which has no obvious shape?

Sometimes, the shape of a galaxy is distorted by a collision with another galaxy. Quasars are thought to be galactic nuclei but are so far away that their exact nature is still uncertain. They are compact, highly luminous objects in the outer reaches of the known universe: while the furthest known ordinary galaxies are about 12 billion light-years away, the furthest known Quasar is about 13 light-years away. Active galaxies, such as Seyfert galaxies and radio galaxies, emit intense radiation. In a Seyfert galaxy, this radiation comes from the galactic nucleus; in a radio galaxy, it also comes from huge lobes on either side of the galaxy. The radiation from active galaxies and quasars is thought to be caused by material falling into the central black holes.


This image does not belong to this site.
Credits: NASA, Hubble Team
    Copy right free.




                                                  

Comments

Post a Comment

Thank you

Popular posts from this blog

Truth about Reptilian Alien | Aliens Explorer

Who are Reptilian Aliens And Where are they from? Reptilian humanoids are a proposed race of high intelligence, extraordinary, or exceptionally created reptile-like humanoids in folklore, mainstream fiction, pseudoscientific speculations and in the compositions of New Age conspiracists. They are believed to originate from Draco's constellation. Artists depiction of reptilians' physical appearance. They show up in some fear inspired notions, most outstandingly those of Riley Martin, John Rhodes, David Icke, and in sci-fiction. Different names incorporate Draconians, Saurians, and Sauroids. They are frequently portrayed as being green or gold shading. Like the different cryptids, nobody has created verification of the presence of reptilian humanoids, and claims of their reality can, best case scenario is alluded to as cryptozoology or pseudoscience. In spite of the fact that there is no significant proof to demonstrate the presence of reptilian humanoids
Post a Comment
Read more

Bright light spots on Ceres surface | Alien Explorers

NASA's Dawn spacecraft found bright spots on Ceres Multiple bright spots in Occator crater stand out against the dark surface Credits: NASA/JPL-Caltech On February 19, 2015, NASA's Dawn spacecraft captured mysteriously bright spots on Ceres reflecting off the surface of the dwarf planet. While some scientists suggested that the lights are the result of something natural like ice fields or escaping gas, the higher resolution images failed to explain the bright lights.  After four months in June, the Dawn spacecraft captured even more incredible images; These images reveal what looks like a three-mile tale pyramid. Can these be possibly technological structures? The Question came in the mind are “Is this technological structure have been built by extra-terrestrials? Additional oversight of Ceres planet might reveal evidence that it once served as the refuge for ancient aliens war survivors. The answer to this question according to ancient astronaut theorists say
3 comments
Read more

Conspiracies of Antarctica | Alien explorers

Evidence of Extraterrestrial on Antarctica   An iceberg in Antarctica (Source: pixabay.com )   Antarctica- is the fifth-largest continent on this planet. It is covered with ice up to 4km thick. Antarctica is the coldest regions on the Earth. The temperature here is enough to freeze water all the time. The middle sector of Antarctica is much colder than the shores. It has no plants or bushes. The only plants which can tolerate the harsh circumstances are moss and algae. But this Continent has hidden many mysteries of our planet.                 Map of Antarctica  An old map of Antarctica (Source- pixabay.com ) Ancient ruins discovered in Antarctica .  Here are the unexpected mysteries of the White continent Antarctica. The Pyramids of Antarctica : Pyramids has been a mystery for a long time. Important Questions regarded to pyramids are  Why they were built?  Why the shape of the pyramids is triangular?  Newly Discovered pyramids in  Antarcti
1 comment
Read more