Galaxy

5.2. Deep Survey The Deep Survey will cover (at least) two patches of > 10 deg2 and objects down to magnitude 26. The objectives of Euclid’s Deep Survey is 1. to investigate galaxy formation with very high statistical confidence. 2. to obtain spectroscopic redshifts required to calibrate the photometric redshifts needed for the weak lensing experiment. 3. to support the calibration of the visible PSF (point spread function,…

matter and dark energy. Dark matter is the thing that makes it possible for galaxies to exist. When astrophysicists and cosmologist calculated why the universe is structure the way it is, it became clear that there’s just not enough normal matter. The gravity of the visible matter is not strong enough to from galaxies and complex structures. The starts would more likely be scattered all over the place and not form galaxies. Therefore, cosmologist concluded that there is something else inside and…

Cepheid Variable Stars are large and luminous yellow stars in space known to sporadically change size and temperature resulting in pulsing variations in brightness and thus, inconsistent levels of luminosity. There are two types of Cepheid Variable Stars; Type 1 Cepheids (or classical) which are high mass stars with smaller pulsating periods and Type 2 Cepheids which are lower mass stars with greater pulsation periods. All Cepheid Variable Stars, named after the first observed star of this type,…

earth-orbiting telescopes. Locations that black holes can easily be found have been identified. One likely area is at the middle of galaxies. At this region the concentration of stars increases the possibility of larger stars to burn off their fuel, creating black holes which consumed each other until one huge black hole was created. Quasars, the bright area at the middle of galaxies that produces humongous quantities of energy, could possibly contain…

George Jepson and Jack Mercury are the founding fathers of Galaxy Toys Inc. They founded this organization the year 1956. Galaxy Toys Inc. is an exceptional shop which deals in toys. They specialize in LEGO© new and old. Previously, George was working in a plant which manufactured barrel in Toledo. It was during this time that he developed interest in construction of toys. This was due to the advancements in space exploration witnessed at that time. George started by making a spacecraft toy for…

What are Dark Matter and Dark Energy? Introduction: To start with, Dark Matter is invisible material that permeates the galaxies. It exerts a gravitational influence on the stars causing them to deviate from Newton’s and Kepler’s laws. Dark Matter also affects members of a group of galaxies. The nature and composition of the Dark Matter are unknown. In space there is a lot of totally empty space, the vacuum, which contains energy. This energy is variously called Dark Energy and also may be…

The Big Bang is the most widely accepted theory about how our universe first began. This theory was first proposed by Belgian priest Georges Lemaître in the 1920’s. It suggests the universe was once condensed into a space equivalent to less than a grain of sand and expanded to billions of kilometers wide in about a second producing incredible amounts of heat. Everything you see is from that rapid expansion. That’s difficult to imagine, however, 3 major pieces of evidence support this; Hubble’s…

Researches have located a truly colossal black hole at the heart of the recently discovered galaxy known as SAGE0536AGN. The oddly enormous supermassive black hole is approximately thirty times larger than it should be and astronomers cannot seem to figure out why. Researchers from U.K.’s Keele University and the University of Central Lancashire have recently discovered a new black hole that defies all logic. The galaxy, which houses this supermassive black hole, was discovered using NASA’s…

Did you ever think on how the universe ever started ? It all started in total darkness. An astronomer named Edwin Hubble found out that the galaxies were moving farther away, he knew that by a telescope that he created and it is called the hubble telescope. When the universe exploded it began to spread really quickly and when it exploded the universe had a very high temperature when this happened. Which created formation of elements ,gravity,redshift ,doppler effect,CMB, many more . The big…

found black hole lies in the center of the galaxy NGC 1600, which lies 200 million light-years from Earth in the constellation Eridanus. Supermassive black holes likely form by taking in lots of dust and debris early in their life and then by colliding and merging with other black holes. Some researchers are also hypothesizing that this supermassive black hole is currently…