This 11-minute animation depicts key events of NASAs Mars Science Laboratory mission, which will launch in late 2011 and land a rover, Curiosity, on Mars in August 2012. A shorter 4-minute version of this animation, with narration, is also available on our youtube page.
Music attribution — “Cylinder Five” by Chris Zabriskie
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A new study using observations from NASAs Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence that the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a major step toward meeting one of Fermis primary mission goals.
Cosmic rays are subatomic particles that move through space at nearly the speed of light. About 90 percent of them are protons, with the remainder consisting of electrons and atomic nuclei. In their journey across the galaxy, the electrically charged particles become deflected by magnetic fields. This scrambles their paths and makes it impossible to trace their origins directly.
Through a variety of mechanisms, these speedy particles can lead to the emission of gamma rays, the most powerful form of light and a signal that travels to us directly from its sources.
Two supernova remnants, known as IC 443 and W44, are expanding into cold, dense clouds of interstellar gas. This material emits gamma rays when struck by high-speed particles escaping the remnants.
Scientists have been unable to ascertain which particle is responsible for this emission because cosmic-ray protons and electrons give rise to gamma rays with similar energies. Now, after analyzing four years of data, Fermi scientists see a gamma-ray feature from both remnants that, like a fingerprint, proves the culprits are protons.
When cosmic-ray protons smash into normal protons, they produce a short-lived particle called a neutral pion. The pion quickly decays into a pair of gamma rays. This emission falls within a specific band of energies associated with the rest mass of the neutral pion, and it declines steeply toward lower energies.
Detecting this low-end cutoff is clear proof that the gamma rays arise from decaying pions formed by protons accelerated within the supernova remnants.
The milky way is such a common subject to shoot for stills and timelapse. While many sequences feature wide-angle shots of our home galaxy, there seem to be lacking many close-ups (medium format, deep-sky timelapse). Thats how I made the latter my specialty over the past 4 years, with a hand-crafted workflow that enabled me to produce some of the best detailed/colored time lapses of the milky way on the market for that resolution.
As promised, here comes the second compilation featuring only milky way scenes after so many requests. In this 16-minute video, I featured my best shots showcasing the milky way in wide and close up shots, but also near regions that are rarely shown. It represents 5 solid years of hard work shooting in sometimes extremely harsh conditions. The video is a way for me to showcase all my work in sort of a milky way reel but it is also the occasion to produce something that people can set on repeat in their living room when they have guests, or just enjoy whenever they need to escape.
All was shot with the Sony a7s, a7rII and 2 Canon 6D astromodified, a variety of bright lenses ranging from 14mm to 500mm. For motion control I used the Syrp 3-axis Genie I system and also the Vixen Polarie. All post production was made in Lr with the special timelapse plus plugin, Sequence for mac, TLDF, and final production was made in FCPX. I hope you like the movie as much as I liked shooting and processing it and I thank everyone of you for your support. All content is of course copyrighted AMP
For more 4K space, and more great History and Science than youll ever watch, check out our sister network… www.magellantv.com/featured
Our Milky Way may harbor millions of black holes… the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, theres evidence of something far more ominous. A breed of black holes that has reached incomprehensible size and destructive power. Just how large, and violent, and strange can they get?
A new era in astronomy has revealed a universe long hidden to us. High-tech instruments sent into space have been tuned to sense high-energy forms of light — x-rays and gamma rays — that are invisible to our eyes and do not penetrate our atmosphere. On the ground, precision telescopes are equipped with technologies that allow them to cancel out the blurring effects of the atmosphere. They are peering into the far reaches of the universe, and into distant caldrons of light and energy. In some distant galaxies, astronomers are now finding evidence that space and time are being shattered by eruptions so vast they boggle the mind.
We are just beginning to understand the impact these outbursts have had on the universe: On the shapes of galaxies, the spread of elements that make up stars and planets, and ultimately the very existence of Earth. The discovery of what causes these eruptions has led to a new understanding of cosmic history. Back in 1995, the Hubble space telescope was enlisted to begin filling in the details of that history. Astronomers selected tiny regions in the sky, between the stars. For days at a time, they focused Hubbles gaze on remote regions of the universe.
These hubble Deep Field images offered incredibly clear views of the cosmos in its infancy. What drew astronomers attention were the tiniest galaxies, covering only a few pixels on Hubbles detector. Most of them do not have the grand spiral or elliptical shapes of large galaxies we see close to us today.
Instead, they are irregular, scrappy collections of stars. The Hubble Deep Field confirmed a long-standing idea that the universe must have evolved in a series of building blocks, with small galaxies gradually merging and assembling into larger ones.
ABOUT US
Here at SpaceRip, we value the exploration of the unknown. We surpass boundaries for the sake of uncovering the mysteries of the cosmos and what they may tell us about our origin and our future. With our videos, we hope to educate our viewers on how we fit into the universe, and more so how we can do our part to better it.
We have partnered with MagellanTV with the goal of providing our viewers with insight regarding our uncertain future on Earth and beyond. Equipped with knowledge, we hope to inspire people to enact change and pave the way for a better tomorrow.
О Большом взрыве и взрывах сверхновых звезд рассказал д.ф.-м.н. Николай Чугай, зав. отделом нестационарных звезд и звездной спектроскопии Института астрономии РАН. Вселенная, какой мы видим ее сейчас, сформировалась в результате катастрофических взрывов разного масштаба. Прежде всего ее рождение — результат Большого Взрыва, который случился 14 миллиардов лет назад. Однако всё, что мы видим вокруг нас, — да и мы сами, — обязано своим возникновением взрывам сверхновых звёзд. Лекторий «Знание-сила» — совместный проект журнала «Знание-сила», Мемориального музея космонавтики и Студии Борей.
Если вы не астроном, то, скорее всего, не знаете, что звезды движутся очень быстро. Возможно, вы даже не догадываетесь, что они вообще двигаются. Если так, то для вас станет большим сюрпризом, что через нашу галактику летит звезда S5-HVS1, чья скорость превышает невероятные 17 000 км/с.
И как это бывает со многими ярчайшими открытиями, эта звезда была открыта по чистейшей случайности. Астроном Сергей Копосов просматривал данные исследования, когда заметил нечто необычное. Он искал звезды с сильно вытянутыми орбитами, а нашел звезду, которая бежала из галактики на рекордной скорости.
