For 25 years now, the Hubble Space Telescope (and many other satellites) has stimulated us with numerous jaw dropping images of space—stretching from the Great Nebula of Orion, to the Whirlpool Galaxy. They all look so huge and comprehensive, you can nearly imagine yourself moving through space, looking directly at them from up close—yet even the closest among them are unfathomably far away (the closest planet is nearly 162 million miles/261 million kilometers from sun, while the closest star is over 4 light-years distant). In a recent video, the Russian Space Agency (Roscosmos, to be exact) visualizes how our sky may look if some of these marvels were in nearer proximity to Earth. Watch the video below:
Hubble Space Telescope marks 25th anniversary in orbit this week. So, There are some best images taken by Hubble Space Telescope during its 25 years journey. These Images are 100% real and contains no CGI
Hubble has traveled 3.4 billion miles, circling Earth nearly 137,000 times and making more than 1.2 million observations of more than 38,000 celestial objects, according to the Space Telescope Science Institute in Baltimore. The most distant objects spotted by Hubble — primitive galaxies — are some 13 billion light-years away and date to within 400 million or so years of the universe’s origin, known as the Big Bang.
Hubble provides an average of 829 gigabytes of archival data every month, according to the institute. Altogether, Hubble has produced more than 100 terabytes of data.
Some of the images have description about it. if anyone wants to read image description just click that image. and Enjoy……
Image Credit : hubblesite.org
This newly released Hubble image shows Messier 22, the brightest globular cluster visible from the northern hemisphere.
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers.
Messier 22 is located in the constellation Sagittarius, approximately 10,400 light-years away.
It was the first globular cluster to be discovered. German astronomer Johann Abraham Ihle found it on August 26, 1665, while observing Saturn.
The cluster, also known as M22 or NGC 6656, has a diameter of about 70 light-years and half a million solar masses.
According to astronomers, Messier 22 orbits the galactic center once every 200 million years.
The cluster is an easy object for the naked eye to see. Despite its relative proximity to us, the light from the cluster’s stars is not as bright as it should be as it is dimmed by dust and gas located between us and Messier 22.
As they are leftovers from the early Universe, globular clusters are popular study objects for astronomers.
Messier 22 has fascinating additional features: six planet-sized objects that are not orbiting a star have been detected in the cluster; it seems to host two black holes.
The cluster is one of only three ever found to host a planetary nebula – a short-lived gaseous shells ejected by massive stars at the ends of their lives.
Source : Sci-news
Underneath some nondescript farmland near Geneva, on the border of France and Switzerland, the world’s biggest and most expensive scientific experiment is ready to re-start.
Physicists hope it could lead to discoveries that could potentially represent the biggest revolution in physics since Einstein’s theories of relativity.
Among them is Prof Jordan Nash from Imperial College London, who is working on the CMS experiment at the LHC.
“We are opening a new window on the Universe and looking forward to seeing what’s there,” he said.
“As much as we have a lot of theories of what might be out there we don’t know. We’d love to find something completely unexpected and we might, and that’s the exciting bit.”
Why are scientists doubling the LHC’s energy?
They want a glimpse into a world never seen before. By smashing atoms harder than they have been smashed before physicists hope to see peel back another veil of reality.
The aim of the various theories of physics is to explain how the Universe was formed and how the bits that make it up work.
One of the most successful of these theories is called the “Standard Model“.
It explains how the world of the very, very small works.
Just as the world became very strange when Alice shrunk after drinking a potion in the children’s book Alice’s Adventures in Wonderland, physicists have found things are quite different when they study the goings on at scales that are even smaller than the size of an atom.
By doubling the energy of the LHC, it will enable them to discover new characters in the wonderful and mysterious tale of how the Universe works and came to be.
The Standard Model describes how the basic building blocks that make up atoms and govern the forces of nature interact.
And just as in Alice’s stories it features some eccentric characters, notably a family of 17 elementary particles.
Some are familiar from school physics lessons, household names if you like.
The biggest celebrity in the sub-atomic world is perhaps the electron, which orbits the atom and is involved in electricity and magnetism.
Another flashy A-lister is the photon, which is a particle of light.
But most particles from the Standard Model family are more niche, a little more art house if you like, and have strange names.
With the discovery of the sub-atomic world’s biggest celeb of all, the Higgs boson, scientists have now detected all the particles predicted by the Standard Model: a theory that beautifully explains how the Universe works in intricate detail.
Who knows, but possibly one of the biggest changes in thinking in physics for 100 years.
The sub-atomic world is set to become “curiouser and curiouser”.
Source : ITV , BBC
The NASA/ESA Hubble Space Telescope has imaged a set of enigmatic quasar ghosts — ethereal green objects which mark the graves of these objects that flickered to life and then faded. The eight unusual looped structures orbit their host galaxies and glow in a bright and eerie goblin-green hue. They offer new insights into the turbulent pasts of these galaxies.
Hubble Space Telescope has discovered manifestations from the remote past, bright streams of gas, which look like immense looped objects glowing green, once ionized by quasars that no longer exist.
The telescope, which will turn 25 in 20 days, has taken photos of eight unusual space objects glowing emerald in the depths of space. Light emitting space areas dubbed ‘Hanny’s Voorwerp’ are tens of thousands of light years across.
The first object of this kind was spotted by Dutch schoolteacher Hanny van Arkel in 2007.
The ethereal wisps in these images were illuminated, perhaps briefly, by a blast of radiation from a quasar — a very luminous and compact region that surrounds a supermassive black hole at the center of a galaxy. Galactic material falls inwards towards the central black hole, growing hotter and hotter, forming a bright and brilliant quasar with powerful jets of particles and energy beaming above and below the disc of infalling matter.
In each of these eight images a quasar beam has caused once-invisible filaments in deep space to glow through a process called photoionisation. Oxygen, helium, nitrogen, sulphur and neon in the filaments absorb light from the quasar and slowly re-emit it over many thousands of years. Their unmistakable emerald hue is caused by ionised oxygen, which glows green.
hese objects were found in a spin-off of the Galaxy Zoo project, in which about 200 volunteers examined over 16 000 galaxy images in the SDSS to identify the best candidates for clouds similar to Hanny’s Voorwerp. A team of researchers analysed these and found a total of twenty galaxies that had gas ionised by quasars. Their results appear in a paper in the Astronomical Journal.
Source : RT , Spacetelescope.org
Maysak, a category 4 Super Typhoon, as photographed by astronaut Terry Virts on board the International Space Station. Credit: NASA/Terry Virts.
From his perch on the International Space Station, astronaut Terry Virts has been taking some beautiful photos of Earth and space and sharing them on social media.
“Looking down into the eye – by far the widest one I’ve seen,” he tweeted. “It seemed like a black hole from a Sci-Fi movie.”
According to AccuWeather.com, Super Typhoon Maysak is one of the strongest cyclones in history during the months of January, February and March. It has slammed several Micronesian islands, killing 5 people, and is now on its way to the Philippines. As of early on April 1, Maysak had sustained winds of 240 kph (150 mph), equivalent of a Category 4 hurricane. Gusts as high as 390 kph (180 mph) are possible with this storm.
The typhoon is expected to weaken, but still poses a threat to the islands in its path:
Source : Universe Today
Scientists say they have discovered a black hole so big that it challenges the theory about how they grow.
The scientists were initially reluctant to classify it as a black hole because it was too bright, its luminosity equal to the brightness of 420 trillion suns. Most of the people do not believe black holes to be bright, though they can be. This is particularly so because black holes suck everything inside them but just before that there is tremendous friction which produces a lot of light.
Scientists said this black hole was formed about 900 million years after the Big Bang.
But with measurements indicating it is 12 billion times the size of the Sun, the black hole challenges a widely accepted hypothesis of growth rates.
“Based on previous research, this is the largest black hole found for that period of time,” Dr Fuyan Bian, Research School of Astronomy and Astrophysics, Australian National University (ANU).
“Current theory is for a limit to how fast a black hole can grow, but this black hole is too large for that theory.”
The creation of supermassive black holes remains an open topic of research. However, many scientists have long believed the growth rate of black holes was limited.
Black holes grow, scientific theory suggests, as they absorb mass. However, as mass is absorbed, it will be heated creating radiation pressure, which pushes the mass away from the black hole.
“Basically, you have two forces balanced together which sets up a limit for growth, which is much smaller than what we found,” said Bian.
The black hole was discovered a team of global scientists led by Xue-Bing Wu at Peking University, China, as part of the Sloan Digital Sky Survey, which provided imagery data of 35 percent of the northern hemisphere sky.
The ANU is leading a comparable project, known as SkyMapper, to carry out observations of the Southern Hemisphere sky.
Bian expects more black holes to be observed as the project advances.
Source : Reuters , ScienceTimes
Two galaxies drifted too close together between 100 and 200 million years ago, and began to drag at and disrupt one another’s structure and shape
At first glance,it looks like a giant rollercoaster loop.
However, this incredible image actually shows a ‘river’ of Sun-like stars that has been pulled deep into space by the gravitational tug of a bypassing galaxy
The golden loop is made of sun-like stars that have been pulled deep into space, far from the galaxy’s centre.
Experts say the galaxy, called NGC 7714, has witnessed some violent and dramatic events in its recent past.
Tell-tale signs of this brutality can be seen in NGC 7714’s strangely shaped arms, and in the smoky golden haze that stretches out from the galactic centre, they say.
The culprit is a smaller companion named NGC 7715, which lies just out of the frame of this image.
As a result, a ring and two long tails of stars have emerged from NGC 7714, creating a bridge between the two galaxies. This bridge acts as a pipeline, funnelling material from NGC 7715 towards its larger companion and feeding bursts of star formation. Most of the star-forming activity is concentrated at the bright galactic centre, although the whole galaxy is sparking new stars.
The galaxy is located approximately 100 million light-years from Earth in the direction of the constellation Pisces.
Astronomer believe that our Galaxy will also collide with its companion galaxy Andromeda after 4 billion years . Here is the Simulation of Galactic collision
Source : Dailymail , io9
(Click Image to Download)
A Black Hole is a location in space that possesses so much gravity, nothing can escape its pull, even light. We Can’t even see them but they are the Most Powerful and Dangerous things in the Universe. They Governs the whole Structure of Galaxies and Universe.
See this Incredible Video of Black Hole Comparison :-
Source : morn1415 (Youtube Video Uploader)