Tag: Milky Way

NASA Unveils Night-Sky Unpolluted.
NASA has rereleased detailed images of the Night-sky ,unpolluted by earthly Lights.

The images were taken with the help of WISE(unmanned Satellite)

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WISE is a NASA-funded Explorer mission that will provide a vast storehouse of knowledge about the solar system, the Milky Way, and the Universe. Among the objects WISE will study are asteroids, the coolest and dimmest stars, and the most luminous galaxies.

WISE is an unmanned satellite carrying an infrared-sensitive telescope that will image the entire sky. Since objects around room temperature emit infrared radiation, the WISE telescope and detectors are kept very cold (below -430° F /15 Kelvins, which is only 15° Centigrade above absolute zero) by a cryostat — like an ice chest but filled with solid hydrogen instead of ice.

You can also create your own Wise Model.

Read the WISE mission Fact Sheet PDF (1.7 MB).
Read the WISE Launch Press Kit PDF (2.0 MB).

WISE in a box: Create your own 3-D model of the WISE spacecraft.

http://wise.ssl.berkeley.edu/mission.html

“Today, WISE delivers the fruit of 14 years of effort to the astronomical community,” said Edward Wright, WISE principal investigator at UCLA, who first began working on the mission with other team members in 1998.

WISE launched Dec. 14, 2009, and mapped the entire sky in 2010 with vastly better sensitivity than its predecessors. It collected more than 2.7 million images taken at four infrared wavelengths of light, capturing everything from nearby asteroids to distant galaxies. Since then, the team has been processing more than 15 trillion bytes of returned data. A preliminary release of WISE data, covering the first half of the sky surveyed, was made last April.

The WISE catalog of the entire sky meets the mission’s fundamental objective. The individual WISE exposures have been combined into an atlas of more than 18,000 images covering the sky and a catalog listing the infrared properties of more than 560 million individual objects found in the images. Most of the objects are stars and galaxies, with roughly equal numbers of each. Many of them have never been seen before.

WISE observations have led to numerous discoveries, including the elusive, coolest class of stars. Astronomers hunted for these failed stars, called “Y-dwarfs,” for more than a decade. Because they have been cooling since their formation, they don’t shine in visible light and could not be spotted until WISE mapped the sky with its infrared vision.

WISE also took a poll of near-Earth asteroids, finding there are significantly fewer mid-size objects than previously thought. It also determined NASA has found more than 90 percent of the largest near-Earth asteroids.

http://digg.com/newsbar/topnews/the_whole_universe_from_one_satellite_s_eyes

Related articles
- Galactic Views (31) (theneteconomy.wordpress.com)
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15 Apr 2012
Milky Way Galaxy Rotation Affects our Local Time
Artist’s conception of the spiral structure of the Milky Way with two major stellar arms and a central bar. "Using infrared images from NASA’s Spitzer Space Telescope, scientists have discovered that the Milky Way’s elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Previously, our galaxy was thought to possess four major arms." (Photo credit: Wikipedia)

these conceptual problems arise only if we take Space/Time as Absolute.
Time/Space is Relative.
We do not determine Time/Space.
We are conditioned by them and Human mind can not comprehend anything without reference to them.
Refer, my blog Time a ,A Cyclic Theory.
Time is Non-Linear.
If we accept this fact. these seeming contradictions would cease to exist.
Asymmetry is the creation of the Human Mind,so also
Symmetry.
We look for these things, when in Reality they do not exist.
Things are what they are, and not because what we perceive them to be.

Sri Vishnu Purana, in the Evolution of The Universe deals with this point in detail.

About:

“The spin of our galaxy has a twisting effect on our local space that is a million times stronger than that caused by the spin of the Earth.” –Dr Mark Hadley, of the Department of Physics at the University of Warwick

Milky Way image

In 2011, A University of Warwick physicist produced a galaxy sized solution which explains one of the outstanding puzzles of particle physics, while leaving the door open to the related conundrum of why different amounts of matter and antimatter seem to have survived the birth of our Universe.Physicists would like a neat universe where the laws of physics are so universal that every particle and its antiparticle behave in the same way. However in recent years experimental observations of particles known as Kaons and B Mesons have revealed significant differences in how their matter and anti matter versions decay.

This “Charge Parity violation” or “CP violation” is an awkward anomaly for some researchers but is a useful phenomenon for others as it may open up a way of explaining why more matter than anti matter appears to have survived the birth of our universe.

Dr Mark Hadley, of the Department of Physics at the University of Warwick, believes he has found a testable explanation for apparent Charge Parity violation that preserves parity but also makes the Charge Parity violation an even more plausible explanation for the split between matter and antimatter.

Dr Hadley’s paper (just published in EPL (Europhysics Letters) and entitled “The asymmetric Kerr metric as a source of CP violation”) suggests that researchers have neglected the significant impact of the rotation of our Galaxy on the pattern of how sub atomic particles breakdown.Dr Hadley says:
“Nature is fundamentally asymmetric according to the accepted views of particle physics. There is a clear left right asymmetry in weak interactions and a much smaller CP violation in Kaon systems.

These have been measured but never explained. This research suggests that the experimental results in our laboratories are a consequence of galactic rotation twisting our local space time. If that is shown to be correct then nature would be fundamentally symmetric after all.

This radical prediction is testable with the data that has already been collected at Cern and BaBar by looking for results that are skewed in the direction that the galaxy rotates.”

It is easy to neglect the effect of something as large as a galaxy because what seems most obvious to us is the local gravitation field of the Earth or the Sun, both of which have a much more readily apparent gravitational affect on us than that exerted by our galaxy as a whole. However Dr Hadley believes that what is more important in this case is an affect generated by a spinning massive body.

The speed and angular momentum of the Milky Way‘s massive spinning body creates “frame dragging” on its local space and time twisting the shape of that space time and creating time dilation effects.
When CP violation has been observed in the decay of B-Mesons the key difference observed between the break-up of matter and antimatter versions of the same particle is variation in the different decay rates.

Curiously even though researchers observe that wide variation in the pattern of decay rates when those individual decay rates are added together they add up to the same total for both matter and antimatter versions of the same particle.

http://digg.com/newsbar/topnews/milky_way_s_rotation_it_s_effect_on_our_local_space_time

Related articles
- Why is there something instead of nothing? (scienceblogs.com)
- Evidence for Antimatter Anomaly Mounts (news.sciencemag.org)
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3 Apr 2012
Mysterious Objects at the Edge ,The Size of The Universe Videos.
Fermi discovers giant gamma-ray bubbles in the Milky Way (Photo credit: NASA Goddard Photo and Video)

How insignificant are we in the Scheme of Things?

”

Yo vai bhuma tat sukham,

Nalpe sukham asti,

Bhumaiva sukham.

The Infinite is the satisfying happiness.

In the finite no happiness can ever breathe.

The Infinite alone is the fulfilling happiness.

Na tatra suryo bhati,

Na candra-tarakam,

Nema vidyuto bhanti;

Kuto ‘yam agnih:

Tam eva bhantam anubhati sarvam

Tasya bhasa sarvam idam vibhati.

There the sun shines not,

nor the moon and the stars,

nor the lightning,

let alone this earthly fire.

Only when illumining Light shines,

everything else shines;

the self-revealing Light illumines

the entire universe.-Upanishds-Indian Philosophy.

http://www.poetseers.org/the_poetseers/sri_chinmoy/library/vol2/16/

“Outside the realm of human vision is an entire electromagnetic spectrum of wonders. Each type of light–from radio waves to gamma-rays–reveals something unique about the universe. Some wavelengths are best for studying black holes; others reveal newborn stars and planets; while others illuminate the earliest years of cosmic history.

NASA has many telescopes “working the wavelengths” up and down the electromagnetic spectrum. One of them, the Fermi Gamma-Ray Telescope orbiting Earth, has just crossed a new electromagnetic frontier….

“Fermi is picking up crazy-energetic photons,” says Dave Thompson, an astrophysicist at NASA’s Goddard Space Flight Center. “And it’s detecting so many of them we’ve been able to produce the first all-sky map of the very high energy universe.”

“This is what the sky looks like near the very edge of the electromagnetic spectrum, between 10 billion and 100 billion electron volts.”

.

The light we see with human eyes consists of photons with energies in the range 2 to 3 electron volts. The gamma-rays Fermi detects are billions of times more energetic, from 20 million to more than 300 billion electron volts. These gamma-ray photons are so energetic, they cannot be guided by the mirrors and lenses found in ordinary telescopes. Instead Fermi uses a sensor that is more like a Geiger counter than a telescope. If we could wear Fermi’s gamma ray “glasses,” we’d witness powerful bullets of energy – individual gamma rays – from cosmic phenomena such as supermassive black holes and hypernova explosions. The sky would be a frenzy of activity.

Before Fermi was launched in June 2008, there were only four known celestial sources of photons in this energy range. “In 3 years Fermi has found almost 500 more,” says Thompson.

What lies within this new realm?

“Mystery, for one thing,” says Thompson. “About a third of the new sources can’t be clearly linked to any of the known types of objects that produce gamma rays. We have no idea what they are.”

The rest have one thing in common: prodigious energy.

“Among them are super massive black holes called blazars; the seething remnants of supernova explosions; and rapidly rotating neutron stars called pulsars.”

And some of the gamma rays seem to come from the ‘Fermi bubbles’ – giant structures emanating from the Milky Way‘s center and spanning some 20,000 light years above and below the galactic plane.

Exactly how these bubbles formed is another mystery.

http://science.nasa.gov/science-news/science-at-nasa/2012/16mar_theedge/

Related;

How Large is The Universe?

Is The Universe Infinite?

..
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20 Mar 2012
Time-Lapse,Galaxies,Earth-Videos,photos and tutorial.
Time-lapse photography is a cinematography technique whereby the frequency at which film frames are captured (the frame rate) is much lower than that which will be used to play the sequence back. When replayed at normal speed, time appears to be moving faster and thus lapsing. For example, an image of a scene may be captured once every second, and then played back at 30 frames per second; the result would be an apparent increase of speed by 30 times. Time-lapse photography can be considered to be the opposite of high speed photography.

Processes that would normally appear subtle to the human eye, such as the motion of the sun and stars in the sky, become very pronounced. Time-lapse is the extreme version of the cinematography technique of undercranking, and can be confused with stop motion animation.

http://en.wikipedia.org/wiki/Time-lapse_photography

”

The view from the International Space Station never ceases to amaze.

After all, at about 240 miles above, and orbiting at the Earth roughly 17,000 miles per hour, it offers a rare and spectacular view of the home planet.

A recent time-lapse video composed of a series of photos taken by the Expedition 30 crew on Dec. 29, 2011, shows Mother Earth in all her glory.

According to the NASA-Johnson Space Center, the video starts as the ISS passes over southeastern Niger in central Africa and continues to the Indian Ocean, southeast of Madagascar.

As the space station passes over Africa, lightning can be seen on the ground and the Milky Way looms on the horizon. The sun is beginning to rise over the Indian Ocean just as the video ends.

To give you an idea of how fast the ISS travels, the pictures in the video were taken over only a 20-minute period.

We had trouble seeing it, but NASA insists that the Lovejoy Comet is visible near the Milky Way. Let us know in the comments if you’re able to spot it.

And if you’re itching for more time-lapse videos from space, check out HuffPost’s collection of 2011 space and sky videos.

http://www.huffingtonpost.com/2012/01/19/space-time-lapse-video-milky-way-africa_n_1217451.html

Earth HD| Time Lapse View from Space, Fly Over | NASA, ISS

http://www.flickr.com/photos/lightsinthedark/6726493105

Time-Lapse Video tutorial.

We’ll start by understanding some fundamental rules. Under normal circumstances, every one second in a video comprise of 24-30 frames of photos, calculated with the unit fps (frame per second). If you watch a 2 minutes video at 24 fps, that means it’s made up of 2880 photos (frames) animating at high speed.

To create Time-lapse effect, you basically reduce the interval for each shot and merge them into a 24-30 fps video. E.g., if the sun takes 12 hours to set and you take a photo every 1 minute, you will have 720 photos. With a 24 fps compression, you’ll have a video of sun rise to sun set in 30 seconds. Isn’t it amazing!

Your Subject

You probably already have some ideas in mind, but here’s what we can think of just in case you left your creative cap at home.
- Sunrise, sunset, or from sunrise to sunset
- Fruit rotting
- Flower blossoming
- Growth of plant
- Ice melting
- Clouds movement
- Stars movement (clear sky required)
- Movements of a busy city street
http://www.hongkiat.com/blog/how-to-make-time-lapse-video-ultimate-guide/

Related articles
- Time lapse: Yosemite (blogs.discovermagazine.com)
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23 Jan 2012
Binary Twin or Brown Dwarf?-Next to Sun Video.
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30 Jun 2011