Blog para repartir asuntos y noticias de programas favoritas de Ciencia Ficcion, Astronomia y Lectura. Incluye Documentales Factuales en relaccion con estas temas.
Instrumento CLASP (Chromospheric Lyman-Alpha SpectroPolarimeter), lanzado el 3 de septiembre de 2015 en un cohete suborbital de la NASA desde el Campo de Misiles de Arenas Blancas (Nuevo México, Estados Unidos). Midió por primera vez la polarización de la radiación ultravioleta del Sol en las líneas Lyman-alfa del hidrógeno y del Si III a 1206 Angstromsm, que proporciona información sobre el campo magnético y geometría del plasma en la enigmática región de transición entre la cromosfera y corona del Sol. El instrumento realizó las observaciones por encima de 150 km de altura, donde dicha radiación ultravioleta comienza a ser medible, mientras ascendía hasta 300 kilómetros de altura siguiendo una trayectoria parabólica. Los cuatro centros de investigación responsables de esta misión son NAOJ, NASA/MSFC, IAS y el IAC.
Crédito: NASA.
Edición del vídeo y animaciones: Gabriel Pérez, SMM (IAC).
All across the immense reaches of time and space, energy is being exchanged, transferred, released, in a great cosmic pinball game we call our universe.
How does energy stitch the cosmos together, and how do we fit within it? We now climb the power scales of the universe, from atoms, nearly frozen to stillness, to Earth's largest explosions. From stars, colliding, exploding, to distant realms so strange and violent they challenge our imaginations. Where will we find the most powerful objects in the universe?
Today, energy is very much on our minds as we search for ways to power our civilization and serve the needs of our citizens. But what is energy? Where does it come from? And where do we stand within the great power streams that shape time and space?
Energy comes from a Greek word for activity or working. In physics, it's simply the property or the state of anything in our universe that allows it to do work. Whether it's thermal, kinetic, electro-magnetic, chemical, or gravitational.
The 19th century German scientist Hermann von Helmholtz found that all forms of energy are equivalent, that one form can be transformed into any other. The laws of physics say that in a closed system - such as our universe - energy is conserved. It may be converted, concentrated, or dissipated, but it's never lost.
James Prescott Joule built an apparatus that demonstrated this principle. It had a weight that descended into water and caused a paddle to rotate. He showed that the gravitational energy lost by the weight is equivalent to heat gained by the water from friction with the paddle. That led to one of several basic energy yardsticks, called a joule. It's the amount needed to lift an apple weighing 100 grams one meter against the pull of Earth's gravity.
In case you were wondering, it takes about one hundred joules to send a tweet, so tweeted a tech from Twitter. The metabolism of an average sized person, going about their day, generates about 100 joules a second, or 100 watts, the equivalent of a 100-watt light bulb.
In vigorous exercise, the power output of the body goes up by a factor of ten, one order of magnitude, to around a thousand joules per second, or a thousand watts. In a series of leaps, by additional factors of ten, we can explore the full energy spectrum of the universe.
God's Universe... See For Yourself. Thanks to Louie Giglio... Glory To God! Please feel free to download this video Got Questions go to the Bible Got Questions go to: http://www.GotQuestions.org/ With more than 100 million downloads, the YouVersion Bible app Download it here: https://www.bible.com/
Seminar by Spike Psarris Seattle Creation Conference, June 2013. Woodin Valley Baptist Church, Bothell WA.
Description: We're told that our Universe formed in a Big Bang event, about 14 billion years ago. Science programs, textbooks, and other media claim that there's lots of evidence for this. But is this true? In this presentation, we'll examine the Big Bang theory. We'll see that it not only lacks solid evidence, it also contradicts several important laws of science. Overall we'll see that the Big Bang is not a good scientific model. Instead, it has all the characteristics of a religious belief system for atheists -- one that is believed in spite of the evidence, because the alternative (Biblical Creation) implies accountability to a Creator.
About the Speaker: Spike Psarris has a Bachelor's of Science in Electrical Engineering from the University of Massachusetts, and has done graduate work in Physics. For a number of years, he was an engineer in the U.S. military space program. He went into the U.S. military space program as an atheist and committed evolutionist, and came out of it as a young-earth creationist and Christian. (http://www.CreationAstronomy.com)
This seminar was recorded during the 2013 Seattle Creation Conference at Woodin Valley Baptist Church in Bothell Washington (http://www.woodinvalleybaptist.org/). The NW Creation Network organizes numerous educational programs each year, which feature presentations by speakers, scientists, and authors who are dedicated to defending the Bible and the Christian worldview. These events are open to the public and free to attend.
In landmark observations, the MUSE instrument on ESO's Very Large Telescope in Chile has given astronomers the best ever three-dimensional view of the deep Universe. After staring at the Hubble Deep Field South region for a total of 27 hours the new observations reveal the distances, motions and other properties of far more galaxies than ever before in this tiny piece of the sky. The new observations are allowing astronomers to go beyond the Hubble Deep Field and reveal a host of previously unseen objects.
To celebrate World Space Week 2013 we're uploading clips from Wonders of the Universe with Professor Brian Cox. Gold is a rare and precious element on Earth. Our world is made up of just 92 elements, and these same 92 elements are found throughout the entire universe. We are part of the universe because we are made of the same stuff as the universe! When a giant star, at the end of it's life, collapses in on itself, the temperatures reach 1 hundred billion degrees. Under these conditions the heaviest elements like Gold form. The explosion is known as a Supernova. Subscribe to the BBC Worldwide channel: http://www.youtube.com/subscription_center?add_user=BBCWorldwide BBC Worldwide Channel: http://www.youtube.com/BBCWorldwide Having explored the wonders of the solar system, Professor Brian Cox steps boldly on to an even bigger stage - the universe. Who are we? Where do we come from? For thousands of years humanity has turned to religion and myth for answers to these enduring question...
An advanced particle detector onboard the International Space Station may have recorded its first whiff of Dark Matter. Researchers are excited about the possibility of finally understanding what this mysterious substance is made of. Visit http://science.nasa.gov/ for breaking science news.
Stunning imagery illustrates Hubble Space Telescope part in a global scientific effort to understand how stars explode, what effect they have on the universe, and what they can tell us about its origins and future. From Hubblecast. Most stars in the Universe are small and insignificant, like our Sun They eventually fizzle and die without much drama. But a few light up the sky when they die, and in the process, they don't just tell us about the lives of stars: they create the building blocks of life, and help us to unravel the whole history of the Universe. These are the stars that end their lives as supernovae, explosions that are among the most violent events in the Universe.
Unknown to the general populace, young men and women from around the globe are being raised in a secret, underground facility. Using a library of alien knowledge that was uncovered early in the 21st century—code name: The Quantum Guide—these future astronauts prepare for the day when they will set out to colonize the galaxy. They must learn to decode the myriad of enigmas that exist in the great beyond if there is to be any hope of the human race becoming an interstellar power. Jarl Quarkson is one such student. His first lesson starts now.
Esto es puramente teoría. ¿Quien puede saber por cierto que se puede hacer? Hay muchos riesgos a la seguridad y estabilidad del universo, solo por cambiar una cosa mas pequeña de un grano de azúcar.
New images from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft show the moon's crust is being stretched, forming minute valleys in a few small areas on the lunar surface. Scientists propose this geologic activity occurred less than 50 million years ago, which is considered recent compared to the moon's age of more than 4.5 billion years.
A team of researchers analyzing high-resolution images obtained by the Lunar Reconnaissance Orbiter Camera (LROC) show small, narrow trenches typically much longer than they are wide. This indicates the lunar crust is being pulled apart at these locations. These linear valleys, known as graben, form when the moon's crust stretches, breaks and drops down along two bounding faults. A handful of these graben systems have been found across the lunar surface.
We think the moon is in a general state of global contraction because of cooling of a still hot interior," said Thomas Watters of the Center for Earth and Planetary Studies at the Smiths... more
See this fascinating story from ESOCast. For many centuries, maps of the southern sky showed extensive blank areas -- the Terra Incognita of the heavens. The year 1595: For the first time, Dutch traders set sail to the East Indies. At night, navigators Pieter Keyser and Frederik de Houtman measured the positions of more than 130 stars in the southern sky. Soon, celestial globes and maps showed twelve new constellations, none of which had ever been seen before by any European.
The British were the first to construct a permanent astronomical outpost in the southern hemisphere. The Royal Observatory at the Cape of Good Hope was founded in 1820. Not much later, John Herschel built his own private observatory, close to South Africa's famous Table Mountain.
What a view! Dark skies. Bright clusters and star clouds high overhead. Little wonder that Harvard, Yale and Leiden observatories followed suit with their own southern stations. But the exploration of the southern sky still too... more
Based on the Science on a Sphere program "The Wanderers." In ancient times, humans watched the skies looking for clues to their future and to aid in their very survival. They soon observed that some stars were not fixed, but moved in the sky from night to night. They called these stars the wanderers.
At the center of our solar system is the sun, binding the planets with its gravitational pull. From our viewpoint on earth, the sun appears small in the sky, but in reality it dwarfs even Jupiter, the largest planet in the solar system.
The distance from the sun to the small worlds traveling it are vast. Light takes eight minutes to reach earth, and nearly a day to reach the farthest known bodies. Join us now as we tour our solar system, starting with sun-baked mercury and traveling to the remotest outskirts, where small, icy bodies move with only the faintest connection to our sun.
Mercury Mercury, the closest planet to Sun is also the smallest terrestrial planet. It o... more
A team of European astronomers has used ESO's Very Large Telescope (VLT) to track down a star in the Milky Way that many thought was impossible. They discovered that this star is composed almost entirely of hydrogen and helium, with only remarkably small amounts of other chemical elements in it. This intriguing composition places it in the "forbidden zone" of a widely accepted theory of star formation, meaning that it should never have come into existence in the first place. The results will appear in the 1 September 2011 issue of the journal Nature.
Using the VISIR instrument on ESO's Very Large Telescope (VLT), astronomers have imaged a complex and bright nebula around the supergiant star Betelgeuse in greater detail than ever before. This structure, which resembles flames emanating from the star, is formed as the behemoth sheds its material into space.
From Hubblecast in 1080p. Newborn stars firing out jets of matter, from images captured over time by Hubble scientists have created fascinating movie sequences showing their progress out into space. These jets may cast new light on how the Sun formed 4.5 billion years ago.
An international team of scientists led by astronomer Patrick Hartigan of Rice University in Houston, USA, has collected enough high-resolution Hubble images over a 14-year period to stitch together time-lapse movies of these jets. more
Astronomers are still scratching their heads over Comet Lovejoy, which plunged through the atmosphere of the sun in December and, against all odds, survived. The comet is now receding into the outer solar system leaving many mysteries behind. Visit http://science.nasa.gov/science-news/science-at-nasa/2012/12jan_cometlovejoy/ for more. more
