Interstellar medium

A galaxy is a huge collection of dust, gases and stars. A galaxy is created right after the birth of a universe and held together, it is constantly moving through space. There are four different kinds of galaxies: spiral, barred spiral, elliptical and irregular. (Spiral Galaxies) A typical spiral galaxies can be define by how its form, structure, and characterize. Spiral galaxies have the shape of spiral, hit where they get their name from. The arms of the spiral galaxies are made of the stars,

My favourite constellation is Orion the Hunter. Back when I was first becoming interested in astronomy, I found it hard to navigate the night sky. A lot of the astronomers I knew used constellations to do so, as they could be used to point towards other stars, or in some cases (as with Orion) contained an object of interest -- the Orion Nebula. One winter night, looking at reference material, as the sky was clear for a change, I decided to compare my reference source with the night sky. It was in

The life and death of a star is both interesting and complicated. The formation of a star might not be as simple as you think. Some stars actually fail to form big enough to ever be seen. You might also believe that a star will shine forever. However, stars can also lose their energy, causing them to become other types of formations. Stars can be complex anomalies that can end up in several forms including neutron stars, brown dwarfs, and white dwarfs. Star formation is a rather simple process

Stage One: Interstellar Clouds Stars, such as our sun begin their life in an entirely different form from the one we come to recognize. Their lives begin in the bitter cold, around 10 degrees Kelvin, which is only a few degrees above the 3 degrees Kelvin temperature of the background of space itself. Their density is also extremely sparse, with a density of around 1 billion particles per cubic metre, which is only a wisp in comparison to the density of around 1410 kilograms per cubic metre that

#38 The Milky Way Galaxy is made up of stars, nebulae, stellar stars and supernovas. In The early 20th Century, astronomers were trying to figure out what the faint fizzy objects in the sky they had a variety of different shapes. Some were elongated, round and some has spiral arms. Looking at the sky with a telescope the objects looks smokey and got their name “?Nebulae”. Astronomers couldn't quite understand how they formed and began doing research, later discovering what the objects are. In

Main Sequence stars make up about 90 percent of the stars in your universe. These stars are ones that are fusing hydrogen into helium at their cores. Our Sun is a Main Sequence Star. To create a Main Sequence star, an interstellar cloud goes through seven evolutionary stages which take approximately 40 to 50 million years. After approximately 10 billion years after the star is considered to be a main sequence star, the hydrogen at the center of the core is depleted. This causes the nuclear fusion

Title: Ulysses, the 18-Year Mission Table of Contents Page # 1. Introduction 2. Space Craft A. Components B. Journey C. History D. Launch 3. Objectives A. Secondary Objectives 4. Partnerships A. ESA B. NASA C. Contribution 7. Future A. Challenges B. What we learned C. Future Missions 8. Conclusion // Summary 9. References 1. Introduction: Space is made of many secrets yet to be discover, but every day we tend to move closer. However, due to size of space we will never stop learning. For example

Parenago 1802, a member of the ∼1 Myr Orion Nebula Cluster, is a double-lined, detached eclipsing binary in a 4.674 d orbit, with equal-mass components (M2/M1=0.985±0.029). Here we present extensive V IC JHKS light curves spanning ∼15 yr, as well as a Keck/HIRES optical spectrum. The light curves evince a third light source that is variable with a period of 0.73 d, and is also manifested in the high-resolution spectrum, strongly indicating the presence of a third star in the system, probably a rapidly

Throughout the universe, there are dense molecular or dust clouds, known as interstellar clouds, and they are the first stage of a star. These clouds are incredibly large, containing thousands of times the mass of the Sun, and while they start out stable, for them to one day become a star, they must become unstable. Once this happens, they are no longer able to withstand their own gravity and they break into smaller pieces. The trigger for these events are still unknown, but astronomers think

Observing the Galaxy Yesterday, NASA released news that will help us understand the formation of oval galaxies, specifically, the new data answered some old questions about why oval galaxies take so long to form. It turns out that the way a black hole controls the proto-matter of a baby galaxy actually regulates star birth as the galaxy takes shape around it. The Observation of Black Holes When this news came to light yesterday, little did everyone know that the news was already available for