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Under alien observation?

Galaxies that are discs or spirals are mostly blue, a sign that they are forming new stars. Blobby spheroidal galaxies, meanwhile, are red and are no longer making stars. The team focused on the era between 1. But none had looked at the galaxies that are Milky Way-sized or bigger.

The team analysed massive galaxies from cosmic high noon. Meanwhile, though we are still looking for extraterrestrial life, there have already been hundreds of distant worlds and exoplanets found with more to be out there, reported Live Science.

Researchers say alien life may exist while humans live in their 'galactic zoo'

Aliens have not put us in a zoo. But they are observing us carefully and have been doing so for many, many years. These people in the Pentagon have chosen to keep these contacts secret. The last contact with the civilian US administration was made when Eisenhower was President and he conspired with the Pentagon to keep it hidden as well. Why US?? Your email address will not be published.

Save my name, email, and website in this browser for the next time I comment. Relatively stable exchange rate? Improvements in current account gap? Green shoots in select listed sectors? It sounds like yesterday when the Federal Committee on Agriculture FCA was brimming with optimism over a rebound of cotton crop after a decade. Syed Javed Hassan has over thirty years of experience in leadership roles both internationally and in Pakistan.

Get regular updates from Business Recorder directly on your device. The Galaxy Zoo Mergers aimed to provide a set of tools that allowed users to randomly sample various sets of simulation parameters in rapid succession by showing 8 simulation outputs at a time. This started in November and was retired in June The task in this Galaxy Zoo project was to help catch exploding stars — supernovae. Data for the site was provided by an automatic survey in California at the Palomar Observatory.

Astronomers followed up on the best candidates at telescopes around the world. This started in August and was retired in August The site's third incarnation, Galaxy Zoo Hubble drew from surveys conducted by the Hubble Space Telescope to view earlier epochs of galaxy formation. In these surveys, which involve many days of dedicated observing time, we can see light from galaxies which has taken billions of years to reach us.

The idea behind Galaxy Zoo Hubble was to be able to compare galaxies then to galaxies now, giving us a clear understanding of what factors influence their growth, whether through mergers, active black holes or simply star formation. This started in April and was retired in September This is the third phase in a large effort to measure reliable, detailed morphologies of galaxies by using crowdsourced visual classifications of colour composite images. Each galaxy received an average of 40 independent classifications, which we combine into detailed morphological information on galaxy features such as clumpiness, bar instabilities, spiral structure, and merger and tidal signatures.


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There are about images to look through. It continues that by matching galaxy images with radio images from CSIRO's Australia Telescope, a participant can work out if a galaxy has a supermassive black hole. Another project that uses data from volunteer classifications is Galaxy Zoo Quench, which studies the interactions between galaxies and the effect it has on starbursts among others. In June , citizen scientists through Galaxy Zoo reported that the usual Hubble classification , particularly concerning spiral galaxies , may not be supported, and may need updating.

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One of the original aims for Galaxy Zoo was to explore which way galaxies rotated. Cosmologist Kate Land stated: "Some people have argued that galaxies are rotating all in agreement with each other, not randomly as we'd expect. We want people to classify the galaxies according to which way they're rotating and I'll be able to go and see if there's anything bizarre going on.


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  8. If there are any patterns that we're not expecting, it could really turn up some surprises. The rotation, also called the Chirality , of galaxies has been examined in several Galaxy Zoo related papers. Among the results a psychological bias was demonstrated. When the Science team came to analyse the results they found an excess of anti-clockwise spinning spiral galaxies.

    This demonstrated that the human brain has real difficulty discerning between something rotating clockwise or anti-clockwise. Mainstream astronomical theory before Galaxy Zoo held that elliptical or 'early type' galaxies were red in color and spiral or 'late type' galaxies were blue in color: several papers published as a result of Galaxy Zoo have proved otherwise.

    However ellipticals are almost always red, indicating that they are full of old and dead stars. Also, a population of red spirals mean was found. They were staring us in the face. Now we know that a third of spirals around the edges of some clusters of galaxies are red. No group of professionals could have classified this many galaxies alone. It is gratifying to see that we each provide independent pieces of the puzzle pointing to the same conclusion.

    It is thought that Red Spirals are galaxies in the process of transition from young to old. The properties of Galactic Dust have been examined in several Galaxy Zoo papers. Despite constituting only a minor fraction of the galactic mass between 0.

    Are Aliens Ignoring Us? Maybe We're Already Their Captives in a 'Galactic Zoo'

    Because of their dimension typically smaller than a few tenths of a micron , they are very effective in absorbing and scattering the radiation emitted by stars in the ultraviolet , optical and near-infrared. The study of dust in galaxies is interesting for many reasons. Standard candles used to measure the expansion history of the Universe also need to be corrected for dust extinction.

    A catalogue of 1, overlapping galaxies was published in , which had been collected by volunteers on the Galaxy Zoo forum using SDSS images. The abstract states: 'Analysis of galaxies with overlapping images offers a direct way to probe the distribution of dust extinction and its effects on the background light.

    Some spiral galaxies have central bar-shaped structures composed of stars. These galaxies are called 'barred spirals' and have been investigated by Galaxy Zoo in several studies. These colours are significant. Blue galaxies get their hue from the hot young stars they contain, implying that they are forming stars in large numbers.

    In red galaxies, this star formation has stopped, leaving behind the cooler, long-lived stars that give them their red colour. Karen Masters, a scientist involved in the studies, stated: "For some time data have hinted that spirals with more old stars are more likely to have bars, but with such a large number of bar classifications we're much more confident about our results. It's not yet clear whether the bars are some side effect of an external process that turns spiral galaxies red, or if they alone can cause this transformation.

    Spiral galaxies usually have 'bulges' at their centers. These bulges are huge, tightly packed groups of stars. However, using Galaxy Zoo volunteer classifications, it has been found that some spiral galaxies do not have bulges. It is found that the bar fraction across the redshift range 0. Other papers that have used Galaxy Zoo data resulted in observations that include those taken by the Chandra X-ray Observatory. A study published in the online journal Citizen Science: Theory and Practice compares two citizen science projects, Foldit and GZ, to explore the difference between projects that do or don't use gaming to obtain data.

    The abstract ends: "We conclude that ideals of science embraced by citizen scientists appear to influence the reasons why they participate, either emphasizing equality, like in Galazy Zoo, or meritocracy, like in Foldit. From Wikipedia, the free encyclopedia. Galaxy Zoo Type of site. Main article: Radio Galaxy Zoo. Astronomy Education Review. Bibcode : AEdRv BBC News. Retrieved 17 July Retrieved 18 July Science Daily. Retrieved 25 August Retrieved 21 July Retrieved 12 July News nature.

    Retrieved 4 September Bibcode : Sci Jordan; Slosar, A. Princeton University Press. Retrieved 13 August Free Press. USA Today. Retrieved 26 July Park Science. Retrieved 11 October Retrieved 18 October Daily Zooniverse.

    Galactic zoo took shape near the dawn of the universe

    Archived from the original on 3 August Retrieved 24 July Institute of Physics. Monthly Notices of the Royal Astronomical Society. University of Oxford.

    Retrieved 13 October McIntosh; R. Smethurst; R. Nichol; C.