#matthewopdyke #scifiauthor #politicalsciencefiction #longevity #neuroscience #physics #theoreticalphysics #biotechnology #nanotechnology #physiology #solarsystem #pathwaytothestars #advancedcivilization https://www.instagram.com/p/BtA69fdgfy1/?utm_source=ig_tumblr_share&igshid=1jswi9krjwmqe
Excellent Time to Cozy Up to Preparation for a Grand Space Adventure!
It takes a lot to travel beyond the limits of our Solar System. As such, the Christmas Edition of the two-novel literary masterpiece, with a side dish series going a little deeper in smaller portions of each major aspect of the two-novel series, Pathway to the Stars, despite being ridden with indie goofs, pauper challenges toward perfection, and ever-so-constantly updating text to improve the…
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Matthew Opdyke @ Author Central
http://www.amazon.com/dp/0578430436
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Out Now! . Pathway to the Stars: Part 7, Span of Influence . "To be worthy to journey the stars, conditions must be such that if a group of explorers were to return home many millennia later, humanity will not have faded away into nothing. Instead, they will have preserved the homeworld and home solar system, and even improved upon the beauty, the abundance, and the ability of longevity of life in every way that is positive and possible." . ~ Eliza Williams works with her team in the Pathway organization to increase her span of influence throughout the world. Journey with Vesha Celeste as she continues her adventures with Yesha Alevtina in the Virtual Universe, understanding more fully how Eliza's team has become the enigmatic propagator of the future. With tech cities spanning the Solar System yet hidden from those who have not been read-in, humanity will be breath taken to behold them. Eliza takes on some of the biggest titans of every industry and teaches them what she believes will fuel the future -- kindness, shared-well-being, compassion, and consent, or what she coins as Universal Ethics! . Span of Influence - ISBN: 9781951321055, LCCN: 2019918436 eBook: https://www.amazon.com/dp/B081XHLJ36 Paperback: https://www.amazon.com/dp/1951321073 . #sciencefiction #scifi #spaceopera #fantasy #stem #astronomy #industry #wellbeing #author #matthewjopdyke #ebook #paperback #amazon https://www.instagram.com/p/B5syxGIh4Ac/?igshid=1a0lrrqlkt4kv
I am pleased to announce a NEW RELEASE to my Space Opera series. It is now available on Amazon in ebook and paperback formats! Pathway to the Stars: Part 4, Universal Party Autographed copies of printed material are available for direct purchase on the author website at https://www.ftb-pathway-publications.com Thank you, Kim, for putting this together! #spaceopera #futurism #scifiauthor #sciencefiction #scififantasy #biotech #nanotech #neurotech #spacetravel #solarsystem #politicalscifi #strongfemalelead #entertain #educate https://www.instagram.com/p/Bur_fTyA4xP/?utm_source=ig_tumblr_share&igshid=15y5ce5xhxpf5
Think big, be your best, and reach out farther than you can imagine. #furtherthanbefore #pathwaytothestars #scifi #longevity #clarityofmind #health #neuroscience #physics #theoreticalphysics https://www.instagram.com/p/Bq7vZXDgX4J/?utm_source=ig_tumblr_share&igshid=aa9nsjpqc86t
Pathway to the Stars: Part 10, Sky Taylor
"In a benevolent society, you are safe, I am safe, everyone is safe, and our potential for innovations that reduce unnecessary suffering can know no bounds. Only in a benevolent, ethical, and moral society—a society and a worldwide civilization that seeks to preserve life, and bolster well-being, will we possess the mentality and the evolved capacity to preserve our Earth, our Solar System, and our humanity...
“Those who justify the behaviors of those that truly oppress, they know who they are, yet I believe that they too can change. No matter who you are, no matter your past, no matter what you have done until now, you can still grow, you can breathe in, and you can breathe out. You can slow down the visceral thoughts of malice raging within your mind, and you can gain compassion for others, you can preach ideas of hope and of kindness, rather than push the agendas of greed, elitism, and dissension." ~ Eliza Williams
In this, the tenth book of the Pathway to the Stars series, continues her political leadership rising to new heights, and due to her efforts, a new superhero is borne. Meet Sky Taylor and her unique method of resolving some of the most significant conflicts affecting us all. To her, healing rather than harming is the best option toward creating a beautiful and promising future, as we prepare to journey to the distant stars!
LCCN: 2019919232 ISBN: 978-1-951321-11-6 eBook: https://smile.amazon.com/dp/B081XLBL1G Paperback: https://smile.amazon.com/dp/1951321111
#ScienceFiction #Scifi #SpaceOpera #Fantasy #Author #MatthewJOpdyke #Physics #Biology #Neuroscience #Biotechnology #AI #HBCI #HumanEvolution #PreservingEarth #SpaceExploration #SolarSystem #VirtualUniverse #Nanotech #Biotech #CRISPR #Longevity #Wellbeing #QualityofLife #ClarityofMind https://youtu.be/lGSSIaPM098 via YouTube
Stars are giant, luminous spheres of plasma. There are billions of them — including our own sun — in the Milky Way Galaxy. And there are billions of galaxies in the universe. So far, we have learned that hundreds also have planets orbiting them.
All stars begin from clouds of cold molecular hydrogen that gravitationally collapse. As they cloud collapses, it fragments into many pieces that will go on to form individual stars. The material collects into a ball that continues to collapse under its own gravity until it can ignite nuclear fusion at its core. This initial gas was formed during the Big Bang, and is always about 74% hydrogen and 25% helium. Over time, stars convert some of their hydrogen into helium. That’s why our Sun’s ratio is more like 70% hydrogen and 29% helium. But all stars start out with ¾ hydrogen and ¼ helium, with other trace elements.
If you could collect all the stars together and put them in piles, the biggest pile, by far, would be the red dwarfs. These are stars with less than 50% the mass of the Sun. Red dwarfs can even be as small as 7.5% the mass of the Sun. Below that point, the star doesn’t have the gravitational pressure to raise the temperature inside its core to begin nuclear fusion. Those are called brown dwarfs, or failed stars. Red dwarfs burn with less than 1/10,000th the energy of the Sun, and can sip away at their fuel for 10 trillion years before running out of hydrogen.
The color of stars can range from red to white to blue. Red is the coolest color; that’s a star with less than 3,500 Kelvin. Stars like our Sun are yellowish white and average around 6,000 Kelvin. The hottest stars are blue, which corresponds to surface temperatures above 12,000 Kelvin. So the temperature and color of a star are connected. Mass defines the temperature of a star. The more mass you have, the larger the star’s core is going to be, and the more nuclear fusion can be done at its core. This means that more energy reaches the surface of the star and increases its temperature. There’s a tricky exception to this: red giants. A typical red giant star can have the mass of our Sun, and would have been a white star all of its life. But as it nears the end of its life it increases in luminosity by a factor of 1000, and so it seems abnormally bright. But a blue giant star is just big, massive and hot.
It might look like all the stars are out there, all by themselves, but many come in pairs. These are binary stars, where two stars orbit a common center of gravity. And there are other systems out there with 3, 4 and even more stars. Just think of the beautiful sunrises you’d experience waking up on a world with 4 stars around it.
Speaking of red giants, or in this case, red supergiants, there are some monster stars out there that really make our Sun look small. A familiar red supergiant is the star Betelgeuse in the constellation Orion. It has about 20 times the mass of the Sun, but it’s 1,000 times larger. But that’s nothing. The largest known star is the monster UY Scuti. It is a current and leading candidate for being the largest known star by radius and is also one of the most luminous of its kind. It has an estimated radius of 1,708 solar radii (1.188×109 kilometres; 7.94 astronomical units); thus a volume nearly 5 billion times that of the Sun.
Quick, how many stars are there in the Milky Way. You might be surprised to know that there are 200-400 billion stars in our galaxy. Each one is a separate island in space, perhaps with planets, and some may even have life.
Okay, this one you should know, but it’s pretty amazing to think that our own Sun, located a mere 150 million km away is average example of all the stars in the Universe. Our own Sun is classified as a G2 yellow dwarf star in the main sequence phase of its life. The Sun has been happily converting hydrogen into helium at its core for 4.5 billion years, and will likely continue doing so for another 7+ billion years. When the Sun runs out of fuel, it will become a red giant, bloating up many times its current size. As it expands, the Sun will consume Mercury, Venus and probably even Earth.
Small stars like red dwarfs can live for trillions of years. But hypergiant stars, die early, because they burn their fuel quickly and become supernovae. On average, they live only a few tens of millions of years or less.
Brown dwarfs are substellar objects that occupy the mass range between the heaviest gas giant planets and the lightest stars, of approximately 13 to 75–80 Jupiter masses (MJ). Below this range are the sub-brown dwarfs, and above it are the lightest red dwarfs (M9 V). Unlike the stars in the main-sequence, brown dwarfs are not massive enough to sustain nuclear fusion of ordinary hydrogen (1H) to helium in their cores.
Sirius is a star system and the brightest star in the Earth’s night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The system has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is a binary star system, consisting of a white main-sequence star of spectral type A0 or A1, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B.
To know more click the links: white dwarf, supernova, +stars, pulsars
sources: wikipedia and universetoday.com
image credits: NASA/JPL, Morgan Keenan, ESO, Philip Park / CC BY-SA 3.0
Did you know some of the brightest sources of light in the sky come from black holes in the centers of galaxies? It sounds a little contradictory, but it’s true! They may not look bright to our eyes, but satellites have spotted oodles of them across the universe.
One of those satellites is our Fermi Gamma-ray Space Telescope. Fermi has found thousands of these kinds of galaxies in the 10 years it’s been operating, and there are many more out there!
Black holes are regions of space that have so much gravity that nothing - not light, not particles, nada - can escape. Most galaxies have supermassive black holes at their centers - these are black holes that are hundreds of thousands to billions of times the mass of our sun - but active galactic nuclei (also called “AGN” for short, or just “active galaxies”) are surrounded by gas and dust that’s constantly falling into the black hole. As the gas and dust fall, they start to spin and form a disk. Because of the friction and other forces at work, the spinning disk starts to heat up.
The disk’s heat gets emitted as light - but not just wavelengths of it that we can see with our eyes. We see light from AGN across the entire electromagnetic spectrum, from the more familiar radio and optical waves through to the more exotic X-rays and gamma rays, which we need special telescopes to spot.
About one in 10 AGN beam out jets of energetic particles, which are traveling almost as fast as light. Scientists are studying these jets to try to understand how black holes - which pull everything in with their huge amounts of gravity - somehow provide the energy needed to propel the particles in these jets.
Many of the ways we tell one type of AGN from another depend on how they’re oriented from our point of view. With radio galaxies, for example, we see the jets from the side as they’re beaming vast amounts of energy into space. Then there’s blazars, which are a type of AGN that have a jet that is pointed almost directly at Earth, which makes the AGN particularly bright.
Our Fermi Gamma-ray Space Telescope has been searching the sky for gamma ray sources for 10 years. More than half (57%) of the sources it has found have been blazars. Gamma rays are useful because they can tell us a lot about how particles accelerate and how they interact with their environment.
So why do we care about AGN? We know that some AGN formed early in the history of the universe. With their enormous power, they almost certainly affected how the universe changed over time. By discovering how AGN work, we can understand better how the universe came to be the way it is now.
Fermi’s helped us learn a lot about the gamma-ray universe over the last 10 years. Learn more about Fermi and how we’re celebrating its accomplishments all year.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.