Galaxy

of the radiation emitted from a "normal" galaxy is in the form of visible light, like that of the radiation of ordinary stars, AGNs are prominent across the entire electromagnetic spectrum. Thus, astronomers needed to look beyond the visual regime to see their full potential. Recent technological advancements, such as satellite deployment, have enabled astronomers to explore energies once unattainable. In addition to the showing in a wide range of energies, AGNs also change in brightness on time scales from minutes to decades. It's no wonder then that some stars once thought to be variable, such as W Comae, AP Librae, and BL Lacertae, were in fact AGN. Only decades in the making, the study of Active Galactic Nuclei (AGN) is a fairly…

finding new galaxies, planets asteroids, and more. But today, that's not what we are going to talk about. We’re going to talk about galaxies. Have you ever wondered what a galaxy really is? In the early 1900s, astronomers . Astronomers argued about spiral shaped, gas, dust were getting closer to discovering galaxiessome star vast cloud found in the night sky. In 1919, Edwin Hubble, an astronomer found the answers. Hubble used his 100-inch mirror and stood on top of Mount Wilson in California. He…

On a clear and dark night from a position with low levels of pollution, the Andromeda Galaxy can be easily observed in the sky by the unaided eye, even though it is about 2.5 million light-years away from Earth. The unaided eye, however, can only perceive the galaxy as a whole and is unable to distinguish features within the galaxy. Luckily, microscopes combined with the intellect of many bright astronomers over the years have allowed us to better understand what the human eye cannot see, in…

Ever wanted to know more about nebulae or galaxies? A nebula is a cloud of interstellar dust, stars, and gas (usually hydrogen and helium). A nebula is less dense than a vacuum and mass less than a few kilograms although it is usually the size of the earth or bigger. A galaxy is gravitationally pulled system of stars, stellar remnants, interstellar gas, dust and dark matter. Galaxies range in size in lightyears. Galaxies, they are what holds our solar system and many, many more. We may not be…

Between Two Galaxies The show opens with Marina in her quarters humming a tune while crafting a self-portrait. Some other drawings are hung up; others lay across her desk or in piles on the floor. None of the other portraits are of her, it’s a healthy variety of artistic musings. Her musings are less than inspirational as her life and surroundings are the epitomai of monotony. Marina's humming picks up in volume as she is seen about her day. Marina is in Sick Bay organizing medical…

messier galaxy is galaxy that is seventeen million light years away. This galaxy can be seen in the constellation Hydra. This galaxy is a spiral pinwheel galaxy and is also one of the brightest galaxies in the sky. The galaxy messier 83 was founded in February 23 in 1752 by Nicolas Louis de Lacaille. Lacaille found the Messier 83 galaxy off of the Cape of Good Hope. In March of 1781 Charles Messier added this galaxy to his catalog of nebulas objects, known as the messier catalog. Later on June…

A galaxy cluster is just a cluster of galaxies orbiting one another. There are two ways to find the mass of a galaxy. One way to find the mass of a galaxy is looking at the brightness of it; another way to calculate the mass is based on the orbital speed of the galaxies. When comparing the masses it is apparent that the masses are not equivalent in galaxy clusters. That is where dark matter comes in. There must be some sort of matter that cannot be seen visually making up a large portion of the…

The universe is very big. It could be infinite, we aren't sure exactly how big it is because it is still growing. It is home to countless stars, planets, galaxies, and nebulae. Everything is so far apart. For instance, our moon is 238,900 miles away from the Earth. It is about twice as many miles that someone might walk in eighty years, assuming they walk about 7,500 steps every day. The closest galaxy to us is the Andromeda Galaxy, it is approximately 2.9 million light years away. As long as…

Astronomers discovered a galaxy 9.8 billion light years away that creates an astounding 800 stars a year. To put this in perspective, the Milky Way produces two stars per year at most. “It is very exciting to have discovered such an interesting object,” said Gillian Wilson, a professor of physics and astronomy at the University of California, Riverside and a member of the research team. “Understanding its nature proved to be a real scientific challenge which required the combined efforts of an…

The Milky Way is a barred spiral galaxy, which looks like a pinwheel. At times, people can look up to the sky and see the faint band of light, the glow of stars in the galaxy’s disk, which gave the Milky Way its name. The galaxy is of an average size, 100,000 light-years across and 1,000 light-years deep. It contains about 500 billion stars and many planets. The center of the galaxy contains a supermassive black hole, which is the cause of our galaxies spiral space. Within the galaxy, there are…