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Hickson Compact Group 31 is one of 100 compact galaxy groups catalogued by Canadian astronomer Paul Hickson. Credit: NASA, ESA, S. Gallagher (University of Western Ontario), and J. English (University of Manitoba). Photo No. STScI-PRC10-08a Imagine finding a living dinosaur in your backyard. Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic back yard: a group of small, ancient galaxies that has waited 10 billion years to come together. These "late bloomers" are on their way to building a large elliptical galaxy. Such encounters between dwarf galaxies are normally seen billions of light-years away and therefore occurred billions of years ago. But these galaxies, members of Hickson Compact Group 31, are relatively nearby, only 166 million light-years away.New images of these galaxies by NASA's Hubble Space Telescope offer a window into what commonly happened in the universe's formative years when large galaxies were created from...

Increasing carbon dioxide benefits trees. by Dr. Nitish Priyadarshi Almost 100% of the observed temperature increase over the last 50 years has been due to the increase in the atmosphere of carbon dioxide and other greenhouse gas concentrations like water vapour, methane and ozone.. The largest contributing source of carbon dioxide gas is the burning of fossil fuels. Research says more carbon dioxide more heating of the earth. This is one aspect of the carbon dioxide. Other aspect is its relation with the trees. If we believe on the researches by the scientists, increasing carbon dioxide benefits trees. Scientists from the University of Wisconsin-Madison and the University of Minnesota at Morris have found that increased levels of atmospheric carbon dioxide have led to the rapid growth of certain tree species. The quaking aspen, a popular North America deciduous tree, has seen a 50 percent acceleration in growth over the past 50 years due to increased CO2 levels. Trees are necessary ...

Villagers are forced to live on top of the tree. by Dr. Nitish Priyadarshi Elephant entering in a village. Herd of elephants destroying the huts. Village destroyed. People forced to live on top of tree . Villagers on tree. Other aspect of elephant. Roaming on the street of Ranchi city with its owner.

In many cultures of the world there are different stories of these ancient giant reptiles and their interactions with human beings. by Dr. Nitish Priyadarshi Fig. Kaliya Nag (cobra snake) There is nothing quite so frightening as the idea of a sea monster. Unlike T. Rex and other giant dinosaurs, which went extinct, might sea monsters live on? Might they lurk beneath the leaden cloak of the oceans, breaching occasionally into view? Through the ages, serious mariners have returned to port with accounts of huge, snaky beasts baring teeth and trailing feathery manes, undulating through the waves or rearing like a horse. Stories about water serpents have slithered into many cultures. But what about the science of sea monsters? In fact, there was a time when they did exist. About 250 million years ago Earth’s continents were gathered into one landmass, Pangaea. Shallow seas and the lack of significant marine predators created new niches for many reptiles that had developed on land. They wri...

It seems Haiti is now history. by Dr. Nitish Priyadarshi All photo credits: www.huffingtonpost.com The 2010 Haiti earthquake was a catastrophic magnitude 7.0 Mw earthquake centred approximately 25 kilometres (16 mi) from Port-au-Prince , the capital of Haiti , which struck at 16:53:09 local time (21:53:09 UTC) on Tuesday, 12 January 2010. The earthquake occurred at a depth of 13 kilometres (8.1 mi). The United States Geological Survey recorded a series of aftershocks , fourteen of them between magnitudes 5.0 and 5.9. The International Red Cross estimates that there have been as many as three million people affected by the quake, and an estimated 45,000–50,000 deaths. Most of Port-au-Prince's major landmarks were significantly damaged or destroyed in the earthquake, including the Presidential Palace (though the President survived), the National Assembly building, the Port-au-Prince Cathedral , and the main jail. All hospitals were destroyed or so badly damaged that they hav...

GeoEye-1 satellite from 423 miles in space. by Dr. Nitish Priyadarshi Above is a photo that contains an "AFTER THE QUAKE" satellite image of Port-au-Prince taken by GeoEye-1 satellite from 423 miles in space at 10:27 am EST on Jan. 13, 2010 as it moved from north to south over the Caribbean at a speed of 4 miles per second. Ground resolution is half meter (19 inches). This photograph was send to me by Mr.James Davis Manager of Digital Communications. You can see the Haitian National Palace located just to the right of the center of the image. It looks like a white inverted letter "E."To see the imagery at its best resolution you can zoom-in to any area within the image.The imagery clearly shows extensive damage throughout the city. One can see roads covered with debris from collapsed structures, people crowded in the streets and in open public places such as sports fields and stadiums. Many buildings appear to be flattened. The white-colored National Palace sho...

It is now a globally emerging discipline. by Dr. Nitish Priyadarshi Humans live in lands. Most of them live in intimate contact with the immediate geological environment, obtaining their food and water directly from it. The unique geochemistry of these tropical environments have a marked influence on their health, giving rise to diseases that affect millions of people. The origin of these diseases is geologic as exemplified by dental and skeletal fluorosis, iodine deficiency disorders, trace element imbalances to name a few. Medical Geology is an emerging scientific discipline that examines the impacts that geologic materials and processes have on human and ecosystem health. Medical Geology: · Identifies and characterizes natural and anthropogenic sources of harmful materials in the environment. · Predicts the movement and alteration of chemical, infectious, and other disease-causing agents over time and space. · Provides an understanding of how people are exp...